68980975 has 18 divisors (see below), whose sum is σ = 99503304. Its totient is φ = 47300400.

The previous prime is 68980969. The next prime is 68980993. The reversal of 68980975 is 57908986.

It is not a de Polignac number, because 68980975 - 2⁵ = 68980943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 26931 + ... + 29380.

Almost surely, 2^68980975 is an apocalyptic number.

68980975 is a deficient number, since it is larger than the sum of its proper divisors (30522329).

68980975 is a wasteful number, since it uses less digits than its factorization.

68980975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56335 (or 56323 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 68980975 is about 8305.4786135418. The cubic root of 68980975 is about 410.1188927457.

The spelling of 68980975 in words is "sixty-eight million, nine hundred eighty thousand, nine hundred seventy-five".