2563877440 has 56 divisors (see below), whose sum is σ = 6464378232. Its totient is φ = 965222400.

The previous prime is 2563877383. The next prime is 2563877479. The reversal of 2563877440 is 447783652.

It can be written as a sum of positive squares in 4 ways, for example, as 262180864 + 2301696576 = 16192^2 + 47976^2 .

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, 230211 + ... + 241090.

Almost surely, 2^2563877440 is an apocalyptic number.

2563877440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2563877440 is an abundant number, since it is smaller than the sum of its proper divisors (3900500792).

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

2563877440 is a wasteful number, since it uses less digits than its factorization.

2563877440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471335 (or 471325 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The square root of 2563877440 is about 50634.7453829878. The cubic root of 2563877440 is about 1368.6710682227.

The spelling of 2563877440 in words is "two billion, five hundred sixty-three million, eight hundred seventy-seven thousand, four hundred forty".