68906429736651 has 24 divisors (see below), whose sum is σ = 110645449905536. Its totient is φ = 41036087185920.

The previous prime is 68906429736637. The next prime is 68906429736691. The reversal of 68906429736651 is 15663792460986.

68906429736651 is a `hidden beast` number, since 6 + 8 + 90 + 6 + 42 + 97 + 366 + 51 = 666.

It is not a de Polignac number, because 68906429736651 - 2⁵ = 68906429736619 is a prime.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68906429736651.

It is not an unprimeable number, because it can be changed into a prime (68906429736691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9499090630 + ... + 9499097883.

It is a 1-persistent number, because it is pandigital, but 2⋅68906429736651 = 137812859473302 is not.

Almost surely, 2^{68906429736651} is an apocalyptic number.

68906429736651 is a deficient number, since it is larger than the sum of its proper divisors (41739020168885).

68906429736651 is a wasteful number, since it uses less digits than its factorization.

68906429736651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18998188563 (or 18998188560 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 72.

The spelling of 68906429736651 in words is "sixty-eight trillion, nine hundred six billion, four hundred twenty-nine million, seven hundred thirty-six thousand, six hundred fifty-one".