21807211482 has 48 divisors (see below), whose sum is σ = 57175215552. Its totient is φ = 5864123520.

The previous prime is 21807211471. The next prime is 21807211493. The reversal of 21807211482 is 28411270812.

It is a happy number.

21807211482 is a `hidden beast` number, since 21 + 80 + 72 + 11 + 482 = 666.

It is an interprime number because it is at equal distance from previous prime (21807211471) and next prime (21807211493).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5088244 + ... + 5092527.

It is an arithmetic number, because the mean of its divisors is an integer number (1191150324).

Almost surely, 2^21807211482 is an apocalyptic number.

21807211482 is an abundant number, since it is smaller than the sum of its proper divisors (35368004070).

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

21807211482 is a wasteful number, since it uses less digits than its factorization.

21807211482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10180803 (or 10180800 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

It can be divided in two parts, 21807 and 211482, that added together give a square (233289 = 483²).

The spelling of 21807211482 in words is "twenty-one billion, eight hundred seven million, two hundred eleven thousand, four hundred eighty-two".