68615456 has 48 divisors (see below), whose sum is σ = 166267584. Its totient is φ = 27143424.

The previous prime is 68615447. The next prime is 68615467. The reversal of 68615456 is 65451686.

It is a happy number.

It is a super-3 number, since 3×68615456³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8870 + ... + 14693.

It is an arithmetic number, because the mean of its divisors is an integer number (3463908).

Almost surely, 2^68615456 is an apocalyptic number.

It is an amenable number.

68615456 is an abundant number, since it is smaller than the sum of its proper divisors (97652128).

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

68615456 is a wasteful number, since it uses less digits than its factorization.

68615456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23593 (or 23585 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 68615456 is about 8283.4446940871. Note that the first 3 decimals coincide. The cubic root of 68615456 is about 409.3932249991.

The spelling of 68615456 in words is "sixty-eight million, six hundred fifteen thousand, four hundred fifty-six".