2469581664 has 48 divisors (see below), whose sum is σ = 7071986880. Its totient is φ = 748357760.

The previous prime is 2469581651. The next prime is 2469581683. The reversal of 2469581664 is 4661859642.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168254 + ... + 1170365.

It is an arithmetic number, because the mean of its divisors is an integer number (147333060).

Almost surely, 2^2469581664 is an apocalyptic number.

2469581664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2469581664 is an abundant number, since it is smaller than the sum of its proper divisors (4602405216).

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

2469581664 is a wasteful number, since it uses less digits than its factorization.

2469581664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338643 (or 2338635 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 2469581664 is about 49694.8856925942. The cubic root of 2469581664 is about 1351.6817931612.

The spelling of 2469581664 in words is "two billion, four hundred sixty-nine million, five hundred eighty-one thousand, six hundred sixty-four".