21413964995 has 16 divisors (see below), whose sum is σ = 25933258080. Its totient is φ = 16973612544.

The previous prime is 21413964899. The next prime is 21413965049. The reversal of 21413964995 is 59946931412.

It is a cyclic number.

It is not a de Polignac number, because 21413964995 - 2¹⁸ = 21413702851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2333957 + ... + 2343113.

It is an arithmetic number, because the mean of its divisors is an integer number (1620828630).

Almost surely, 2^21413964995 is an apocalyptic number.

21413964995 is a deficient number, since it is larger than the sum of its proper divisors (4519293085).

21413964995 is a wasteful number, since it uses less digits than its factorization.

21413964995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13414.

The product of its digits is 2099520, while the sum is 53.

The spelling of 21413964995 in words is "twenty-one billion, four hundred thirteen million, nine hundred sixty-four thousand, nine hundred ninety-five".