21747414402 has 48 divisors (see below), whose sum is σ = 56684996160. Its totient is φ = 5886517536.

The previous prime is 21747414401. The next prime is 21747414431. The reversal of 21747414402 is 20441474712.

21747414402 is a `hidden beast` number, since 2 + 174 + 7 + 41 + 440 + 2 = 666.

21747414402 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (21747414401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4539673 + ... + 4544460.

It is an arithmetic number, because the mean of its divisors is an integer number (1180937420).

Almost surely, 2^21747414402 is an apocalyptic number.

21747414402 is an abundant number, since it is smaller than the sum of its proper divisors (34937581758).

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

21747414402 is a wasteful number, since it uses less digits than its factorization.

21747414402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9084167 (or 9084164 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The spelling of 21747414402 in words is "twenty-one billion, seven hundred forty-seven million, four hundred fourteen thousand, four hundred two".