68780143932 has 24 divisors (see below), whose sum is σ = 160658306256. Its totient is φ = 22902242688.

The previous prime is 68780143877. The next prime is 68780143961. The reversal of 68780143932 is 23934108786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3047283 + ... + 3069770.

It is an arithmetic number, because the mean of its divisors is an integer number (6694096094).

Almost surely, 2^68780143932 is an apocalyptic number.

It is an amenable number.

68780143932 is an abundant number, since it is smaller than the sum of its proper divisors (91878162324).

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

68780143932 is a wasteful number, since it uses less digits than its factorization.

68780143932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117997 (or 6117995 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 68780143932 in words is "sixty-eight billion, seven hundred eighty million, one hundred forty-three thousand, nine hundred thirty-two".