21411907374832 has 40 divisors (see below), whose sum is σ = 44809340431856. Its totient is φ = 9853094071296.

The previous prime is 21411907374799. The next prime is 21411907374833. The reversal of 21411907374832 is 23847370911412.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 21411907374832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411907374833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152662638 + ... + 152802829.

Almost surely, 2^{21411907374832} is an apocalyptic number.

It is an amenable number.

21411907374832 is an abundant number, since it is smaller than the sum of its proper divisors (23397433057024).

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

21411907374832 is a wasteful number, since it uses less digits than its factorization.

21411907374832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305465825 (or 305465819 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 21411907374832 in words is "twenty-one trillion, four hundred eleven billion, nine hundred seven million, three hundred seventy-four thousand, eight hundred thirty-two".