21413348874756 has 36 divisors (see below), whose sum is σ = 55279851000192. Its totient is φ = 6985915235184.

The previous prime is 21413348874707. The next prime is 21413348874767. The reversal of 21413348874756 is 65747884331412.

21413348874756 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 33 + 488 + 74 + 7 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 21413348874693 and 21413348874702.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6327820080 + ... + 6327823463.

It is an arithmetic number, because the mean of its divisors is an integer number (1535551416672).

Almost surely, 2^{21413348874756} is an apocalyptic number.

It is an amenable number.

21413348874756 is an abundant number, since it is smaller than the sum of its proper divisors (33866502125436).

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

21413348874756 is a wasteful number, since it uses less digits than its factorization.

21413348874756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12655643600 (or 12655643595 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 63.

The spelling of 21413348874756 in words is "twenty-one trillion, four hundred thirteen billion, three hundred forty-eight million, eight hundred seventy-four thousand, seven hundred fifty-six".