68477544 has 48 divisors (see below), whose sum is σ = 189991620. Its totient is φ = 22268160.

The previous prime is 68477531. The next prime is 68477561. The reversal of 68477544 is 44577486.

68477544 is a `hidden beast` number, since 68 + 47 + 7 + 544 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45724644 + 22752900 = 6762^2 + 4770^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68477544.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8647 + ... + 14550.

Almost surely, 2^68477544 is an apocalyptic number.

It is an amenable number.

68477544 is an abundant number, since it is smaller than the sum of its proper divisors (121514076).

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

68477544 is a wasteful number, since it uses less digits than its factorization.

68477544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23250 (or 23243 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 68477544 is about 8275.1159508493. The cubic root of 68477544 is about 409.1187576463.

The spelling of 68477544 in words is "sixty-eight million, four hundred seventy-seven thousand, five hundred forty-four".