68932637955 has 32 divisors (see below), whose sum is σ = 123012933120. Its totient is φ = 36624267360.

The previous prime is 68932637951. The next prime is 68932637957. The reversal of 68932637955 is 55973623986.

It is not a de Polignac number, because 68932637955 - 2² = 68932637951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68932637892 and 68932637901.

It is not an unprimeable number, because it can be changed into a prime (68932637951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 935241 + ... + 1006250.

It is an arithmetic number, because the mean of its divisors is an integer number (3844154160).

Almost surely, 2^68932637955 is an apocalyptic number.

68932637955 is a deficient number, since it is larger than the sum of its proper divisors (54080295165).

68932637955 is a wasteful number, since it uses less digits than its factorization.

68932637955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941768 (or 1941762 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 63.

The spelling of 68932637955 in words is "sixty-eight billion, nine hundred thirty-two million, six hundred thirty-seven thousand, nine hundred fifty-five".