21472260005636 has 48 divisors (see below), whose sum is σ = 41967813000960. Its totient is φ = 9528138066720.

The previous prime is 21472260005621. The next prime is 21472260005641. The reversal of 21472260005636 is 63650006227412.

It is a super-2 number, since 2×21472260005636² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632435 + ... + 6583653.

It is an arithmetic number, because the mean of its divisors is an integer number (874329437520).

Almost surely, 2^{21472260005636} is an apocalyptic number.

It is an amenable number.

21472260005636 is a deficient number, since it is larger than the sum of its proper divisors (20495552995324).

21472260005636 is a wasteful number, since it uses less digits than its factorization.

21472260005636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5953184 (or 5953182 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 21472260005636 in words is "twenty-one trillion, four hundred seventy-two billion, two hundred sixty million, five thousand, six hundred thirty-six".