68102464 has 28 divisors (see below), whose sum is σ = 135572500. Its totient is φ = 33942528.

The previous prime is 68102453. The next prime is 68102477. The reversal of 68102464 is 46420186.

It can be written as a sum of positive squares in 2 ways, for example, as 27040000 + 41062464 = 5200^2 + 6408^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20812 + ... + 23860.

It is an arithmetic number, because the mean of its divisors is an integer number (4841875).

Almost surely, 2^68102464 is an apocalyptic number.

68102464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68102464 is a deficient number, since it is larger than the sum of its proper divisors (67470036).

68102464 is a wasteful number, since it uses less digits than its factorization.

68102464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410 (or 3400 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 68102464 is about 8252.4217051724. The cubic root of 68102464 is about 408.3704184375.

The spelling of 68102464 in words is "sixty-eight million, one hundred two thousand, four hundred sixty-four".