68340561232 has 20 divisors (see below), whose sum is σ = 132498216000. Its totient is φ = 34147473248.

The previous prime is 68340561193. The next prime is 68340561277. The reversal of 68340561232 is 23216504386.

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 3 ways as a sum of consecutive naturals, for example, 1400728 + ... + 1448695.

It is an arithmetic number, because the mean of its divisors is an integer number (6624910800).

Almost surely, 2^68340561232 is an apocalyptic number.

It is an amenable number.

68340561232 is a deficient number, since it is larger than the sum of its proper divisors (64157654768).

68340561232 is a wasteful number, since it uses less digits than its factorization.

68340561232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850930 (or 2850924 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 68340561232 in words is "sixty-eight billion, three hundred forty million, five hundred sixty-one thousand, two hundred thirty-two".