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8742366918972 = 2232242843525527
BaseRepresentation
bin111111100110111110110…
…1011001011100100111100
31010221202120120201021112100
41333031331223023210330
52121213331412401342
630332104331305100
71561421000500041
oct177157553134474
933852516637470
108742366918972
112870687238155
12b923b4bab190
134b552b5b8b0b
142231c063d1c8
151026206e3e4c
hex7f37dacb93c

8742366918972 has 18 divisors (see below), whose sum is σ = 22098760823048. Its totient is φ = 2914122306312.

The previous prime is 8742366918869. The next prime is 8742366918991. The reversal of 8742366918972 is 2798196632478.

8742366918972 is a `hidden beast` number, since 87 + 4 + 2 + 366 + 9 + 189 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 8742366918972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121421762728 + ... + 121421762799.

Almost surely, 28742366918972 is an apocalyptic number.

It is an amenable number.

8742366918972 is an abundant number, since it is smaller than the sum of its proper divisors (13356393904076).

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

8742366918972 is a wasteful number, since it uses less digits than its factorization.

8742366918972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242843525537 (or 242843525532 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 72.

The spelling of 8742366918972 in words is "eight trillion, seven hundred forty-two billion, three hundred sixty-six million, nine hundred eighteen thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 242843525527 485687051054 728530576581 971374102108 1457061153162 2185591729743 2914122306324 4371183459486 8742366918972