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68673542611 = 197643542141
BaseRepresentation
bin111111111101010000…
…110001100111010011
320120020222101102102011
4333331100301213103
52111120411330421
651314224203351
74650536323642
oct777520614723
9216228342364
1068673542611
1127140473aa3
1211386769557
1366256a801b
1434767a9359
151bbde464e1
hexffd4319d3

68673542611 has 8 divisors (see below), whose sum is σ = 69129610704. Its totient is φ = 68218560480.

The previous prime is 68673542603. The next prime is 68673542627. The reversal of 68673542611 is 11624537686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68673542611 - 23 = 68673542603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68673542111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144400 + ... + 397741.

It is an arithmetic number, because the mean of its divisors is an integer number (8641201338).

Almost surely, 268673542611 is an apocalyptic number.

68673542611 is a deficient number, since it is larger than the sum of its proper divisors (456068093).

68673542611 is a wasteful number, since it uses less digits than its factorization.

68673542611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542981.

The product of its digits is 1451520, while the sum is 49.

The spelling of 68673542611 in words is "sixty-eight billion, six hundred seventy-three million, five hundred forty-two thousand, six hundred eleven".

Divisors: 1 197 643 126671 542141 106801777 348596663 68673542611