68780274 has 16 divisors (see below), whose sum is σ = 139218912. Its totient is φ = 22650368.

The previous prime is 68780269. The next prime is 68780311. The reversal of 68780274 is 47208786.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68559 + ... + 69554.

It is an arithmetic number, because the mean of its divisors is an integer number (8701182).

Almost surely, 2^68780274 is an apocalyptic number.

68780274 is an abundant number, since it is smaller than the sum of its proper divisors (70438638).

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

68780274 is a wasteful number, since it uses less digits than its factorization.

68780274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138201.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 68780274 is about 8293.3873658476. The cubic root of 68780274 is about 409.7207577057.

The spelling of 68780274 in words is "sixty-eight million, seven hundred eighty thousand, two hundred seventy-four".