21674180260 has 48 divisors (see below), whose sum is σ = 48205463040. Its totient is φ = 8157611520.

The previous prime is 21674180221. The next prime is 21674180261. The reversal of 21674180260 is 6208147612.

It is not an unprimeable number, because it can be changed into a prime (21674180261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2245645 + ... + 2255275.

It is an arithmetic number, because the mean of its divisors is an integer number (1004280480).

Almost surely, 2^21674180260 is an apocalyptic number.

21674180260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21674180260 is an abundant number, since it is smaller than the sum of its proper divisors (26531282780).

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

21674180260 is a wasteful number, since it uses less digits than its factorization.

21674180260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16276 (or 16274 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 21674180260 in words is "twenty-one billion, six hundred seventy-four million, one hundred eighty thousand, two hundred sixty".