21057532362 has 16 divisors (see below), whose sum is σ = 46794516480. Its totient is φ = 7019177436.

The previous prime is 21057532337. The next prime is 21057532393. The reversal of 21057532362 is 26323575012.

21057532362 is a `hidden beast` number, since 2 + 1 + 0 + 575 + 3 + 23 + 62 = 666.

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, 194977098 + ... + 194977205.

It is an arithmetic number, because the mean of its divisors is an integer number (2924657280).

Almost surely, 2^21057532362 is an apocalyptic number.

21057532362 is an abundant number, since it is smaller than the sum of its proper divisors (25736984118).

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

21057532362 is a wasteful number, since it uses less digits than its factorization.

21057532362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389954314 (or 389954308 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 21057532362 in words is "twenty-one billion, fifty-seven million, five hundred thirty-two thousand, three hundred sixty-two".