523678464 has 108 divisors (see below), whose sum is σ = 1550954496. Its totient is φ = 169814016.

The previous prime is 523678453. The next prime is 523678511. The reversal of 523678464 is 464876325.

523678464 is a `hidden beast` number, since 523 + 67 + 8 + 4 + 64 = 666.

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, 82177 + ... + 88319.

Almost surely, 2^523678464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523678464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775477248).

523678464 is an abundant number, since it is smaller than the sum of its proper divisors (1027276032).

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

523678464 is a wasteful number, since it uses less digits than its factorization.

523678464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202 (or 6185 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 523678464 is about 22884.0220241111. The cubic root of 523678464 is about 806.0368640870.

The spelling of 523678464 in words is "five hundred twenty-three million, six hundred seventy-eight thousand, four hundred sixty-four".