2649046472 has 36 divisors (see below), whose sum is σ = 5141113515. Its totient is φ = 1279613040.

The previous prime is 2649046447. The next prime is 2649046489. The reversal of 2649046472 is 2746409462.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1324523236 + 1324523236 = 36394^2 + 36394^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=36394.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4512563 + ... + 4513149.

Almost surely, 2^2649046472 is an apocalyptic number.

It is an amenable number.

2649046472 is a deficient number, since it is larger than the sum of its proper divisors (2492067043).

2649046472 is an frugal number, since it uses more digits than its factorization.

2649046472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 2649046472 is about 51468.8883890064. Note that the first 3 decimals coincide. The cubic root of 2649046472 is about 1383.6615065920.

The spelling of 2649046472 in words is "two billion, six hundred forty-nine million, forty-six thousand, four hundred seventy-two".