21413877174 has 40 divisors (see below), whose sum is σ = 50069170800. Its totient is φ = 6827611824.

The previous prime is 21413877137. The next prime is 21413877193. The reversal of 21413877174 is 47177831412.

21413877174 is a `hidden beast` number, since 21 + 413 + 87 + 71 + 74 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2869849 + ... + 2877300.

It is an arithmetic number, because the mean of its divisors is an integer number (1251729270).

Almost surely, 2^21413877174 is an apocalyptic number.

21413877174 is an abundant number, since it is smaller than the sum of its proper divisors (28655293626).

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

21413877174 is a wasteful number, since it uses less digits than its factorization.

21413877174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747186 (or 5747177 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The spelling of 21413877174 in words is "twenty-one billion, four hundred thirteen million, eight hundred seventy-seven thousand, one hundred seventy-four".