21472502316 has 24 divisors (see below), whose sum is σ = 50123302320. Its totient is φ = 7154529792.

The previous prime is 21472502287. The next prime is 21472502323. The reversal of 21472502316 is 61320527412.

It is a super-2 number, since 2×21472502316² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341161 + ... + 399168.

It is an arithmetic number, because the mean of its divisors is an integer number (2088470930).

Almost surely, 2^21472502316 is an apocalyptic number.

It is an amenable number.

21472502316 is an abundant number, since it is smaller than the sum of its proper divisors (28650800004).

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

21472502316 is a wasteful number, since it uses less digits than its factorization.

21472502316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742753 (or 742751 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 21472502316 in words is "twenty-one billion, four hundred seventy-two million, five hundred two thousand, three hundred sixteen".