61464864264 has 64 divisors (see below), whose sum is σ = 165511315200. Its totient is φ = 18958556736.

The previous prime is 61464864191. The next prime is 61464864281. The reversal of 61464864264 is 46246846416.

61464864264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1547734 + ... + 1586949.

It is an arithmetic number, because the mean of its divisors is an integer number (2586114300).

Almost surely, 2^61464864264 is an apocalyptic number.

It is an amenable number.

61464864264 is an abundant number, since it is smaller than the sum of its proper divisors (104046450936).

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

61464864264 is a wasteful number, since it uses less digits than its factorization.

61464864264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134754 (or 3134750 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 51.

The spelling of 61464864264 in words is "sixty-one billion, four hundred sixty-four million, eight hundred sixty-four thousand, two hundred sixty-four".