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9768131868132 = 22321124666999667
BaseRepresentation
bin1000111000100101001000…
…0001111011010111100100
31021120211020220102201210200
42032021102001323113210
52240020113224240012
632435230130150500
72025503261630661
oct216112201732744
937524226381720
109768131868132
11312670686a760
121119167722430
1355b19171aab1
1425aacc872a68
1511e158d7e3dc
hex8e25207b5e4

9768131868132 has 36 divisors (see below), whose sum is σ = 26936363637456. Its totient is φ = 2960039959920.

The previous prime is 9768131868109. The next prime is 9768131868181. The reversal of 9768131868132 is 2318681318679.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 9768131868132.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12333499438 + ... + 12333500229.

Almost surely, 29768131868132 is an apocalyptic number.

It is an amenable number.

9768131868132 is an abundant number, since it is smaller than the sum of its proper divisors (17168231769324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9768131868132 is a wasteful number, since it uses less digits than its factorization.

9768131868132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24666999688 (or 24666999683 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 9768131868132 in words is "nine trillion, seven hundred sixty-eight billion, one hundred thirty-one million, eight hundred sixty-eight thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 24666999667 49333999334 74000999001 98667998668 148001998002 222002997003 271336996337 296003996004 444005994006 542673992674 814010989011 888011988012 1085347985348 1628021978022 2442032967033 3256043956044 4884065934066 9768131868132