21096307794 has 16 divisors (see below), whose sum is σ = 44674534368. Its totient is φ = 6618449472.

The previous prime is 21096307783. The next prime is 21096307807. The reversal of 21096307794 is 49770369012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103413172 + ... + 103413375.

It is an arithmetic number, because the mean of its divisors is an integer number (2792158398).

Almost surely, 2^21096307794 is an apocalyptic number.

21096307794 is an abundant number, since it is smaller than the sum of its proper divisors (23578226574).

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

21096307794 is a wasteful number, since it uses less digits than its factorization.

21096307794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206826569.

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 21096307794 in words is "twenty-one billion, ninety-six million, three hundred seven thousand, seven hundred ninety-four".