2577465138 has 16 divisors (see below), whose sum is σ = 5200550496. Its totient is φ = 851551680.

The previous prime is 2577465133. The next prime is 2577465179. The reversal of 2577465138 is 8315647752.

It is not an unprimeable number, because it can be changed into a prime (2577465131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1900108 + ... + 1901463.

It is an arithmetic number, because the mean of its divisors is an integer number (325034406).

Almost surely, 2^2577465138 is an apocalyptic number.

2577465138 is an abundant number, since it is smaller than the sum of its proper divisors (2623085358).

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

2577465138 is a wasteful number, since it uses less digits than its factorization.

2577465138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801689.

The product of its digits is 1411200, while the sum is 48.

The square root of 2577465138 is about 50768.7417413510. The cubic root of 2577465138 is about 1371.0846433852.

The spelling of 2577465138 in words is "two billion, five hundred seventy-seven million, four hundred sixty-five thousand, one hundred thirty-eight".