4640891464 has 32 divisors (see below), whose sum is σ = 9502322400. Its totient is φ = 2107365120.

The previous prime is 4640891461. The next prime is 4640891471. The reversal of 4640891464 is 4641980464.

It is not an unprimeable number, because it can be changed into a prime (4640891461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62659 + ... + 114925.

It is an arithmetic number, because the mean of its divisors is an integer number (296947575).

Almost surely, 2^4640891464 is an apocalyptic number.

4640891464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4640891464 is an abundant number, since it is smaller than the sum of its proper divisors (4861430936).

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

4640891464 is a wasteful number, since it uses less digits than its factorization.

4640891464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53293 (or 53289 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 4640891464 is about 68124.0887205106. The cubic root of 4640891464 is about 1668.0169924678.

The spelling of 4640891464 in words is "four billion, six hundred forty million, eight hundred ninety-one thousand, four hundred sixty-four".