68818437 has 32 divisors (see below), whose sum is σ = 108108800. Its totient is φ = 43145136.

The previous prime is 68818423. The next prime is 68818531. The reversal of 68818437 is 73481886.

It is not a de Polignac number, because 68818437 - 2²⁴ = 52041221 is a prime.

It is a super-2 number, since 2×68818437² = 9471954542245938, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (258048) is a multiple of the sum of its prime divisors (1008).

It is a junction number, because it is equal to n+sod(n) for n = 68818392 and 68818401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68818037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83208 + ... + 84030.

It is an arithmetic number, because the mean of its divisors is an integer number (3378400).

Almost surely, 2^68818437 is an apocalyptic number.

It is an amenable number.

68818437 is a deficient number, since it is larger than the sum of its proper divisors (39290363).

68818437 is a wasteful number, since it uses less digits than its factorization.

68818437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1008 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 68818437 is about 8295.6878557477. The cubic root of 68818437 is about 409.7965220750.

The spelling of 68818437 in words is "sixty-eight million, eight hundred eighteen thousand, four hundred thirty-seven".