68264551992 has 64 divisors (see below), whose sum is σ = 210044782080. Its totient is φ = 18003837312.

The previous prime is 68264551991. The next prime is 68264552009. The reversal of 68264551992 is 29915546286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68264551991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15626148 + ... + 15630515.

It is an arithmetic number, because the mean of its divisors is an integer number (3281949720).

Almost surely, 2^68264551992 is an apocalyptic number.

It is an amenable number.

68264551992 is an abundant number, since it is smaller than the sum of its proper divisors (141780230088).

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

68264551992 is a wasteful number, since it uses less digits than its factorization.

68264551992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31256692 (or 31256688 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 57.

The spelling of 68264551992 in words is "sixty-eight billion, two hundred sixty-four million, five hundred fifty-one thousand, nine hundred ninety-two".