68462661984 has 48 divisors (see below), whose sum is σ = 184097778480. Its totient is φ = 22264279040.

The previous prime is 68462661973. The next prime is 68462662003. The reversal of 68462661984 is 48916626486.

It is a tau number, because it is divible by the number of its divisors (48).

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, 8693049 + ... + 8700920.

It is an arithmetic number, because the mean of its divisors is an integer number (3835370385).

Almost surely, 2^68462661984 is an apocalyptic number.

It is an amenable number.

68462661984 is an abundant number, since it is smaller than the sum of its proper divisors (115635116496).

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

68462661984 is a wasteful number, since it uses less digits than its factorization.

68462661984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17394023 (or 17394015 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 60.

The spelling of 68462661984 in words is "sixty-eight billion, four hundred sixty-two million, six hundred sixty-one thousand, nine hundred eighty-four".