21633271462432 has 36 divisors (see below), whose sum is σ = 49544054736750. Its totient is φ = 9271402054656.

The previous prime is 21633271462367. The next prime is 21633271462433. The reversal of 21633271462432 is 23426417233612.

It can be written as a sum of positive squares in only one way, i.e., 20935785918096 + 697485544336 = 4575564^2 + 835156^2 .

It is not an unprimeable number, because it can be changed into a prime (21633271462433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6898363057 + ... + 6898366192.

Almost surely, 2^{21633271462432} is an apocalyptic number.

It is an amenable number.

21633271462432 is an abundant number, since it is smaller than the sum of its proper divisors (27910783274318).

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

21633271462432 is a wasteful number, since it uses less digits than its factorization.

21633271462432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13796729273 (or 13796729258 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 46.

The spelling of 21633271462432 in words is "twenty-one trillion, six hundred thirty-three billion, two hundred seventy-one million, four hundred sixty-two thousand, four hundred thirty-two".