21096048759 has 16 divisors (see below), whose sum is σ = 28331493120. Its totient is φ = 13962576320.

The previous prime is 21096048751. The next prime is 21096048767. The reversal of 21096048759 is 95784069012.

It is an interprime number because it is at equal distance from previous prime (21096048751) and next prime (21096048767).

It is a cyclic number.

It is not a de Polignac number, because 21096048759 - 2³ = 21096048751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21096048751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299494 + ... + 363164.

It is an arithmetic number, because the mean of its divisors is an integer number (1770718320).

Almost surely, 2^21096048759 is an apocalyptic number.

21096048759 is a deficient number, since it is larger than the sum of its proper divisors (7235444361).

21096048759 is a wasteful number, since it uses less digits than its factorization.

21096048759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64470.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 21096048759 in words is "twenty-one billion, ninety-six million, forty-eight thousand, seven hundred fifty-nine".