68277438152964 has 36 divisors (see below), whose sum is σ = 173306332779580. Its totient is φ = 22664709757440.

The previous prime is 68277438152947. The next prime is 68277438152971. The reversal of 68277438152964 is 46925183477286.

68277438152964 is a `hidden beast` number, since 6 + 8 + 2 + 7 + 7 + 4 + 38 + 1 + 529 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61009065288900 + 7268372864064 = 7810830^2 + 2695992^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 68277438152892 and 68277438152901.

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 11 ways as a sum of consecutive naturals, for example, 3934836769 + ... + 3934854120.

Almost surely, 2^{68277438152964} is an apocalyptic number.

It is an amenable number.

68277438152964 is an abundant number, since it is smaller than the sum of its proper divisors (105028894626616).

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

68277438152964 is a wasteful number, since it uses less digits than its factorization.

68277438152964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7869691140 (or 7869691135 counting only the distinct ones).

The product of its digits is 975421440, while the sum is 72.

The spelling of 68277438152964 in words is "sixty-eight trillion, two hundred seventy-seven billion, four hundred thirty-eight million, one hundred fifty-two thousand, nine hundred sixty-four".