21927100716 has 18 divisors (see below), whose sum is σ = 55426838012. Its totient is φ = 7309033560.

The previous prime is 21927100711. The next prime is 21927100729. The reversal of 21927100716 is 61700172912.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 609086131 = 21927100716 / (2 + 1 + 9 + 2 + 7 + 1 + 0 + 0 + 7 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (21927100711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 304543030 + ... + 304543101.

Almost surely, 2^21927100716 is an apocalyptic number.

It is an amenable number.

21927100716 is an abundant number, since it is smaller than the sum of its proper divisors (33499737296).

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

21927100716 is a wasteful number, since it uses less digits than its factorization.

21927100716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609086141 (or 609086136 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The spelling of 21927100716 in words is "twenty-one billion, nine hundred twenty-seven million, one hundred thousand, seven hundred sixteen".