2649264180 has 48 divisors (see below), whose sum is σ = 7522429824. Its totient is φ = 696519040.

The previous prime is 2649264161. The next prime is 2649264187. The reversal of 2649264180 is 814629462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649264187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306687 + ... + 315206.

It is an arithmetic number, because the mean of its divisors is an integer number (156717288).

Almost surely, 2^2649264180 is an apocalyptic number.

2649264180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2649264180 is an abundant number, since it is smaller than the sum of its proper divisors (4873165644).

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

2649264180 is a wasteful number, since it uses less digits than its factorization.

2649264180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621976 (or 621974 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 2649264180 is about 51471.0032931164. The cubic root of 2649264180 is about 1383.6994102843.

The spelling of 2649264180 in words is "two billion, six hundred forty-nine million, two hundred sixty-four thousand, one hundred eighty".