2649647464 has 16 divisors (see below), whose sum is σ = 4974933600. Its totient is φ = 1322998512.

The previous prime is 2649647453. The next prime is 2649647471. The reversal of 2649647464 is 4647469462.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221974 + ... + 233605.

It is an arithmetic number, because the mean of its divisors is an integer number (310933350).

Almost surely, 2^2649647464 is an apocalyptic number.

It is an amenable number.

2649647464 is a deficient number, since it is larger than the sum of its proper divisors (2325286136).

2649647464 is a wasteful number, since it uses less digits than its factorization.

2649647464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456312 (or 456308 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 52.

The square root of 2649647464 is about 51474.7264587195. The cubic root of 2649647464 is about 1383.7661362674.

The spelling of 2649647464 in words is "two billion, six hundred forty-nine million, six hundred forty-seven thousand, four hundred sixty-four".