21250623536260 has 96 divisors (see below), whose sum is σ = 46534186782720. Its totient is φ = 8141545843200.

The previous prime is 21250623536237. The next prime is 21250623536297. The reversal of 21250623536260 is 6263532605212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085812275 + ... + 1085831845.

It is an arithmetic number, because the mean of its divisors is an integer number (484731112320).

Almost surely, 2^{21250623536260} is an apocalyptic number.

21250623536260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21250623536260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23267093391360).

21250623536260 is an abundant number, since it is smaller than the sum of its proper divisors (25283563246460).

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

21250623536260 is a wasteful number, since it uses less digits than its factorization.

21250623536260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34477 (or 34475 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 21250623536260 in words is "twenty-one trillion, two hundred fifty billion, six hundred twenty-three million, five hundred thirty-six thousand, two hundred sixty".