21625874310 has 64 divisors (see below), whose sum is σ = 52345522944. Its totient is φ = 5717712000.

The previous prime is 21625874299. The next prime is 21625874323. The reversal of 21625874310 is 1347852612.

It is a super-2 number, since 2×21625874310² (a number of 21 digits) contains 22 as substring.

It is a congruent 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, 6549660 + ... + 6552960.

It is an arithmetic number, because the mean of its divisors is an integer number (817898796).

Almost surely, 2^21625874310 is an apocalyptic number.

21625874310 is an abundant number, since it is smaller than the sum of its proper divisors (30719648634).

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

21625874310 is a wasteful number, since it uses less digits than its factorization.

21625874310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 21625874310 in words is "twenty-one billion, six hundred twenty-five million, eight hundred seventy-four thousand, three hundred ten".