21096190799 has 8 divisors (see below), whose sum is σ = 21629523552. Its totient is φ = 20563752960.

The previous prime is 21096190763. The next prime is 21096190807. The reversal of 21096190799 is 99709169012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21096190799 - 2²⁴ = 21079413583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21096190799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21096190699) 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, 175859 + ... + 270404.

It is an arithmetic number, because the mean of its divisors is an integer number (2703690444).

Almost surely, 2^21096190799 is an apocalyptic number.

21096190799 is a deficient number, since it is larger than the sum of its proper divisors (533332753).

21096190799 is a wasteful number, since it uses less digits than its factorization.

21096190799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447457.

The product of its (nonzero) digits is 551124, while the sum is 53.

The spelling of 21096190799 in words is "twenty-one billion, ninety-six million, one hundred ninety thousand, seven hundred ninety-nine".