68619652992 has 384 divisors, whose sum is σ = 234273967200. Its totient is φ = 19039518720.

The previous prime is 68619652973. The next prime is 68619653017. The reversal of 68619652992 is 29925691686.

68619652992 is a `hidden beast` number, since 6 + 8 + 6 + 19 + 6 + 529 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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 47 ways as a sum of consecutive naturals, for example, 7966384 + ... + 7974992.

Almost surely, 2^68619652992 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 68619652992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117136983600).

68619652992 is an abundant number, since it is smaller than the sum of its proper divisors (165654314208).

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

68619652992 is a wasteful number, since it uses less digits than its factorization.

68619652992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8694 (or 8679 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 63.

The spelling of 68619652992 in words is "sixty-eight billion, six hundred nineteen million, six hundred fifty-two thousand, nine hundred ninety-two".