68885957952 has 224 divisors, whose sum is σ = 231745536000. Its totient is φ = 19655917056.

The previous prime is 68885957923. The next prime is 68885957971. The reversal of 68885957952 is 25975958886.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10435549 + ... + 10442147.

Almost surely, 2^68885957952 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 68885957952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115872768000).

68885957952 is an abundant number, since it is smaller than the sum of its proper divisors (162859578048).

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

68885957952 is a wasteful number, since it uses less digits than its factorization.

68885957952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7490 (or 7474 counting only the distinct ones).

The product of its digits is 435456000, while the sum is 72.

The spelling of 68885957952 in words is "sixty-eight billion, eight hundred eighty-five million, nine hundred fifty-seven thousand, nine hundred fifty-two".