2657187020 has 12 divisors (see below), whose sum is σ = 5580092784. Its totient is φ = 1062874800.

The previous prime is 2657187019. The next prime is 2657187047. The reversal of 2657187020 is 207817562.

2657187020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66429656 + ... + 66429695.

It is an arithmetic number, because the mean of its divisors is an integer number (465007732).

Almost surely, 2^2657187020 is an apocalyptic number.

2657187020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2657187020 is an abundant number, since it is smaller than the sum of its proper divisors (2922905764).

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

2657187020 is a wasteful number, since it uses less digits than its factorization.

2657187020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132859360 (or 132859358 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 2657187020 is about 51547.9099479310. The cubic root of 2657187020 is about 1385.0773927481.

The spelling of 2657187020 in words is "two billion, six hundred fifty-seven million, one hundred eighty-seven thousand, twenty".