68618364 has 24 divisors (see below), whose sum is σ = 160629840. Its totient is φ = 22798464.

The previous prime is 68618353. The next prime is 68618371. The reversal of 68618364 is 46381686.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5379 + ... + 12890.

It is an arithmetic number, because the mean of its divisors is an integer number (6692910).

Almost surely, 2^68618364 is an apocalyptic number.

It is an amenable number.

68618364 is an abundant number, since it is smaller than the sum of its proper divisors (92011476).

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

68618364 is a wasteful number, since it uses less digits than its factorization.

68618364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18589 (or 18587 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 68618364 is about 8283.6202230667. The cubic root of 68618364 is about 409.3990084321.

It can be divided in two parts, 6861 and 8364, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 68618364 in words is "sixty-eight million, six hundred eighteen thousand, three hundred sixty-four".