76451864 has 16 divisors (see below), whose sum is σ = 146052720. Its totient is φ = 37504480.

The previous prime is 76451863. The next prime is 76451867. The reversal of 76451864 is 46815467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76451861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89732 + ... + 90579.

It is an arithmetic number, because the mean of its divisors is an integer number (9128295).

Almost surely, 2^76451864 is an apocalyptic number.

It is an amenable number.

76451864 is a deficient number, since it is larger than the sum of its proper divisors (69600856).

76451864 is a wasteful number, since it uses less digits than its factorization.

76451864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180370 (or 180366 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 76451864 is about 8743.6756572965. The cubic root of 76451864 is about 424.4201809504.

The spelling of 76451864 in words is "seventy-six million, four hundred fifty-one thousand, eight hundred sixty-four".