68415910 has 16 divisors (see below), whose sum is σ = 123339312. Its totient is φ = 27324000.

The previous prime is 68415899. The next prime is 68415931. The reversal of 68415910 is 1951486.

It is a super-2 number, since 2×68415910² = 9361473482256200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1960 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (7708707).

Almost surely, 2^68415910 is an apocalyptic number.

68415910 is a deficient number, since it is larger than the sum of its proper divisors (54923402).

68415910 is a wasteful number, since it uses less digits than its factorization.

68415910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 68415910 is about 8271.3910559228. The cubic root of 68415910 is about 408.9959767898.

The spelling of 68415910 in words is "sixty-eight million, four hundred fifteen thousand, nine hundred ten".