64961469184 has 36 divisors (see below), whose sum is σ = 133852075840. Its totient is φ = 31432965120.

The previous prime is 64961469179. The next prime is 64961469191. The reversal of 64961469184 is 48196416946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4084899 + ... + 4100770.

Almost surely, 2^64961469184 is an apocalyptic number.

64961469184 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64961469184 is an abundant number, since it is smaller than the sum of its proper divisors (68890606656).

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

64961469184 is an equidigital number, since it uses as much as digits as its factorization.

64961469184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185716 (or 8185702 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 58.

The spelling of 64961469184 in words is "sixty-four billion, nine hundred sixty-one million, four hundred sixty-nine thousand, one hundred eighty-four".