21476647264324 has 48 divisors (see below), whose sum is σ = 43762456515456. Its totient is φ = 9032498496000.

The previous prime is 21476647264309. The next prime is 21476647264327. The reversal of 21476647264324 is 42346274667412.

It is a super-2 number, since 2×21476647264324² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21476647264327) 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, 33283482 + ... + 33922609.

It is an arithmetic number, because the mean of its divisors is an integer number (911717844072).

Almost surely, 2^{21476647264324} is an apocalyptic number.

It is an amenable number.

21476647264324 is an abundant number, since it is smaller than the sum of its proper divisors (22285809251132).

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

21476647264324 is a wasteful number, since it uses less digits than its factorization.

21476647264324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67206316 (or 67206314 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 58.

The spelling of 21476647264324 in words is "twenty-one trillion, four hundred seventy-six billion, six hundred forty-seven million, two hundred sixty-four thousand, three hundred twenty-four".