2650131620 has 12 divisors (see below), whose sum is σ = 5565276444. Its totient is φ = 1060052640.

The previous prime is 2650131619. The next prime is 2650131661. The reversal of 2650131620 is 261310562.

It can be written as a sum of positive squares in 2 ways, for example, as 416813056 + 2233318564 = 20416^2 + 47258^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2650131620.

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, 66253271 + ... + 66253310.

It is an arithmetic number, because the mean of its divisors is an integer number (463773037).

Almost surely, 2^2650131620 is an apocalyptic number.

2650131620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2650131620 is an abundant number, since it is smaller than the sum of its proper divisors (2915144824).

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

2650131620 is a wasteful number, since it uses less digits than its factorization.

2650131620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132506590 (or 132506588 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2650131620 is about 51479.4290955135. The cubic root of 2650131620 is about 1383.8504138785.

The spelling of 2650131620 in words is "two billion, six hundred fifty million, one hundred thirty-one thousand, six hundred twenty".