2637449945 has 32 divisors (see below), whose sum is σ = 3619728000. Its totient is φ = 1828721664.

The previous prime is 2637449939. The next prime is 2637449959. The reversal of 2637449945 is 5499447362.

2637449945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2637449945 - 2¹² = 2637445849 is a prime.

It is a super-2 number, since 2×2637449945² = 13912284424761006050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130106 + ... + 149004.

It is an arithmetic number, because the mean of its divisors is an integer number (113116500).

Almost surely, 2^2637449945 is an apocalyptic number.

It is an amenable number.

2637449945 is a deficient number, since it is larger than the sum of its proper divisors (982278055).

2637449945 is a wasteful number, since it uses less digits than its factorization.

2637449945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19049.

The product of its digits is 6531840, while the sum is 53.

The square root of 2637449945 is about 51356.1091302680. The cubic root of 2637449945 is about 1381.6395036736.

The spelling of 2637449945 in words is "two billion, six hundred thirty-seven million, four hundred forty-nine thousand, nine hundred forty-five".