21459116376 has 32 divisors (see below), whose sum is σ = 59608657200. Its totient is φ = 7153038720.

The previous prime is 21459116359. The next prime is 21459116377. The reversal of 21459116376 is 67361195412.

21459116376 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 9 + 1 + 1 + 637 + 6 = 666.

It is a super-2 number, since 2×21459116376² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21459116377) 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, 49673665 + ... + 49674096.

Almost surely, 2^21459116376 is an apocalyptic number.

It is an amenable number.

21459116376 is an abundant number, since it is smaller than the sum of its proper divisors (38149540824).

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

21459116376 is a wasteful number, since it uses less digits than its factorization.

21459116376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99347776 (or 99347766 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 21459116376 in words is "twenty-one billion, four hundred fifty-nine million, one hundred sixteen thousand, three hundred seventy-six".