21477372363052 has 12 divisors (see below), whose sum is σ = 39563580668920. Its totient is φ = 10173492171936.

The previous prime is 21477372363049. The next prime is 21477372363053. The reversal of 21477372363052 is 25036327377412.

It is a super-2 number, since 2×21477372363052² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21477372363053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141298502313 + ... + 141298502464.

Almost surely, 2^{21477372363052} is an apocalyptic number.

It is an amenable number.

21477372363052 is a deficient number, since it is larger than the sum of its proper divisors (18086208305868).

21477372363052 is a wasteful number, since it uses less digits than its factorization.

21477372363052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282597004800 (or 282597004798 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 52.

The spelling of 21477372363052 in words is "twenty-one trillion, four hundred seventy-seven billion, three hundred seventy-two million, three hundred sixty-three thousand, fifty-two".