21526457033412 has 72 divisors (see below), whose sum is σ = 57691647965952. Its totient is φ = 6744405600000.

The previous prime is 21526457033309. The next prime is 21526457033413. The reversal of 21526457033412 is 21433075462512.

21526457033412 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 6 + 4 + 570 + 33 + 41 + 2 = 666.

It is a super-2 number, since 2×21526457033412² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21526457033413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22958464 + ... + 23877687.

It is an arithmetic number, because the mean of its divisors is an integer number (801272888416).

Almost surely, 2^{21526457033412} is an apocalyptic number.

It is an amenable number.

21526457033412 is an abundant number, since it is smaller than the sum of its proper divisors (36165190932540).

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

21526457033412 is a wasteful number, since it uses less digits than its factorization.

21526457033412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46836929 (or 46836924 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 21526457033412 in words is "twenty-one trillion, five hundred twenty-six billion, four hundred fifty-seven million, thirty-three thousand, four hundred twelve".