2577317628 has 12 divisors (see below), whose sum is σ = 6013741160. Its totient is φ = 859105872.

The previous prime is 2577317627. The next prime is 2577317629. The reversal of 2577317628 is 8267137752.

It is an interprime number because it is at equal distance from previous prime (2577317627) and next prime (2577317629).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2577317627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107388223 + ... + 107388246.

Almost surely, 2^2577317628 is an apocalyptic number.

It is an amenable number.

2577317628 is an abundant number, since it is smaller than the sum of its proper divisors (3436423532).

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

2577317628 is a wasteful number, since it uses less digits than its factorization.

2577317628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214776476 (or 214776474 counting only the distinct ones).

The product of its digits is 987840, while the sum is 48.

The square root of 2577317628 is about 50767.2889565712. The cubic root of 2577317628 is about 1371.0584868654.

The spelling of 2577317628 in words is "two billion, five hundred seventy-seven million, three hundred seventeen thousand, six hundred twenty-eight".