21014842695 has 64 divisors (see below), whose sum is σ = 42075832320. Its totient is φ = 8701084800.

The previous prime is 21014842691. The next prime is 21014842777. The reversal of 21014842695 is 59624841012.

It is not a de Polignac number, because 21014842695 - 2² = 21014842691 is a prime.

It is a super-2 number, since 2×21014842695² (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 (21014842691) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 279436 + ... + 346574.

It is an arithmetic number, because the mean of its divisors is an integer number (657434880).

Almost surely, 2^21014842695 is an apocalyptic number.

21014842695 is an abundant number, since it is smaller than the sum of its proper divisors (21060989625).

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

21014842695 is a wasteful number, since it uses less digits than its factorization.

21014842695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67436.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 21014842695 in words is "twenty-one billion, fourteen million, eight hundred forty-two thousand, six hundred ninety-five".