68607931392 has 1408 divisors, whose sum is σ = 284360724480. Its totient is φ = 15765995520.

The previous prime is 68607931331. The next prime is 68607931417. The reversal of 68607931392 is 29313970686.

It is a tau number, because it is divible by the number of its divisors (1408).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 1023998943 + ... + 1023999009.

Almost surely, 2^68607931392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68607931392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142180362240).

68607931392 is an abundant number, since it is smaller than the sum of its proper divisors (215752793088).

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

68607931392 is a wasteful number, since it uses less digits than its factorization.

68607931392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

It can be divided in two parts, 68607 and 931392, that added together give a palindrome (999999).

The spelling of 68607931392 in words is "sixty-eight billion, six hundred seven million, nine hundred thirty-one thousand, three hundred ninety-two".