764115642 has 24 divisors (see below), whose sum is σ = 1656158400. Its totient is φ = 254616840.

The previous prime is 764115631. The next prime is 764115659. The reversal of 764115642 is 246511467.

764115642 is a `hidden beast` number, since 7 + 6 + 4 + 1 + 1 + 5 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 764115597 and 764115606.

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, 65359 + ... + 76157.

It is an arithmetic number, because the mean of its divisors is an integer number (69006600).

Almost surely, 2^764115642 is an apocalyptic number.

764115642 is an abundant number, since it is smaller than the sum of its proper divisors (892042758).

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

764115642 is a wasteful number, since it uses less digits than its factorization.

764115642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14738 (or 14735 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 764115642 is about 27642.6417333800. The cubic root of 764115642 is about 914.2248671443.

The spelling of 764115642 in words is "seven hundred sixty-four million, one hundred fifteen thousand, six hundred forty-two".