68775290 has 24 divisors (see below), whose sum is σ = 129421908. Its totient is φ = 26312000.

The previous prime is 68775283. The next prime is 68775323. The reversal of 68775290 is 9257786.

It can be written as a sum of positive squares in 2 ways, for example, as 57957769 + 10817521 = 7613^2 + 3289^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1211 + ... + 11790.

Almost surely, 2^68775290 is an apocalyptic number.

68775290 is a deficient number, since it is larger than the sum of its proper divisors (60646618).

68775290 is a wasteful number, since it uses less digits than its factorization.

68775290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13054 (or 13031 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 68775290 is about 8293.0868800465. The cubic root of 68775290 is about 409.7108609845.

It can be divided in two parts, 6877 and 5290, that added together give a cube (12167 = 23³).

The spelling of 68775290 in words is "sixty-eight million, seven hundred seventy-five thousand, two hundred ninety".