21014706852 has 48 divisors (see below), whose sum is σ = 54829640320. Its totient is φ = 6960279456.

The previous prime is 21014706833. The next prime is 21014706919. The reversal of 21014706852 is 25860741012.

21014706852 is a `hidden beast` number, since 2 + 101 + 470 + 6 + 85 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602728 + ... + 636639.

Almost surely, 2^21014706852 is an apocalyptic number.

It is an amenable number.

21014706852 is an abundant number, since it is smaller than the sum of its proper divisors (33814933468).

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

21014706852 is a wasteful number, since it uses less digits than its factorization.

21014706852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239537 (or 1239529 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 21014706852 in words is "twenty-one billion, fourteen million, seven hundred six thousand, eight hundred fifty-two".