21274580754 has 48 divisors (see below), whose sum is σ = 52708713408. Its totient is φ = 6075128736.

The previous prime is 21274580683. The next prime is 21274580783. The reversal of 21274580754 is 45708547212.

21274580754 is a `hidden beast` number, since 2 + 12 + 7 + 4 + 580 + 7 + 54 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190024 + ... + 280460.

It is an arithmetic number, because the mean of its divisors is an integer number (1098098196).

Almost surely, 2^21274580754 is an apocalyptic number.

21274580754 is an abundant number, since it is smaller than the sum of its proper divisors (31434132654).

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

21274580754 is a wasteful number, since it uses less digits than its factorization.

21274580754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92319 (or 92316 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

The spelling of 21274580754 in words is "twenty-one billion, two hundred seventy-four million, five hundred eighty thousand, seven hundred fifty-four".