21363702912396 has 72 divisors (see below), whose sum is σ = 58432371479664. Its totient is φ = 6542293242240.

The previous prime is 21363702912311. The next prime is 21363702912397. The reversal of 21363702912396 is 69321920736312.

21363702912396 is a `hidden beast` number, since 2 + 1 + 36 + 370 + 2 + 9 + 1 + 239 + 6 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (21363702912397) 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, 108074091 + ... + 108271586.

Almost surely, 2^{21363702912396} is an apocalyptic number.

21363702912396 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21363702912396 is an abundant number, since it is smaller than the sum of its proper divisors (37068668567268).

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

21363702912396 is a wasteful number, since it uses less digits than its factorization.

21363702912396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216345911 (or 216345906 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 21363702912396 in words is "twenty-one trillion, three hundred sixty-three billion, seven hundred two million, nine hundred twelve thousand, three hundred ninety-six".