21875426210512 has 40 divisors (see below), whose sum is σ = 48438693314496. Its totient is φ = 9375134359296.

The previous prime is 21875426210497. The next prime is 21875426210543. The reversal of 21875426210512 is 21501262457812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29044188 + ... + 29787844.

Almost surely, 2^{21875426210512} is an apocalyptic number.

It is an amenable number.

21875426210512 is an abundant number, since it is smaller than the sum of its proper divisors (26563267103984).

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

21875426210512 is a wasteful number, since it uses less digits than its factorization.

21875426210512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006315 (or 1006309 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 21875426210512 in words is "twenty-one trillion, eight hundred seventy-five billion, four hundred twenty-six million, two hundred ten thousand, five hundred twelve".