2631688260 has 24 divisors (see below), whose sum is σ = 7368727296. Its totient is φ = 701783520.

The previous prime is 2631688253. The next prime is 2631688277. The reversal of 2631688260 is 628861362.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21930676 + ... + 21930795.

It is an arithmetic number, because the mean of its divisors is an integer number (307030304).

Almost surely, 2^2631688260 is an apocalyptic number.

2631688260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2631688260 is an abundant number, since it is smaller than the sum of its proper divisors (4737039036).

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

2631688260 is a wasteful number, since it uses less digits than its factorization.

2631688260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43861483 (or 43861481 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 2631688260 is about 51299.9830409329. The cubic root of 2631688260 is about 1380.6326756623.

The spelling of 2631688260 in words is "two billion, six hundred thirty-one million, six hundred eighty-eight thousand, two hundred sixty".