68732391024 has 320 divisors, whose sum is σ = 224185651200. Its totient is φ = 19972915200.

The previous prime is 68732391017. The next prime is 68732391037. The reversal of 68732391024 is 42019323786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16644192 + ... + 16648320.

It is an arithmetic number, because the mean of its divisors is an integer number (700580160).

Almost surely, 2^68732391024 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 68732391024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112092825600).

68732391024 is an abundant number, since it is smaller than the sum of its proper divisors (155453260176).

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

68732391024 is a wasteful number, since it uses less digits than its factorization.

68732391024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301 (or 4289 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 68732391024 in words is "sixty-eight billion, seven hundred thirty-two million, three hundred ninety-one thousand, twenty-four".