68461580 has 24 divisors (see below), whose sum is σ = 156839760. Its totient is φ = 24895040.

The previous prime is 68461553. The next prime is 68461597. The reversal of 68461580 is 8516486.

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, 155375 + ... + 155814.

It is an arithmetic number, because the mean of its divisors is an integer number (6534990).

Almost surely, 2^68461580 is an apocalyptic number.

It is an amenable number.

68461580 is an abundant number, since it is smaller than the sum of its proper divisors (88378180).

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

68461580 is a wasteful number, since it uses less digits than its factorization.

68461580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311209 (or 311207 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 68461580 is about 8274.1513159961. The cubic root of 68461580 is about 409.0869628950.

The spelling of 68461580 in words is "sixty-eight million, four hundred sixty-one thousand, five hundred eighty".