21089792294 has 8 divisors (see below), whose sum is σ = 31703912328. Its totient is φ = 10521821520.

The previous prime is 21089792281. The next prime is 21089792299. The reversal of 21089792294 is 49229798012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21089792299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11536172 + ... + 11537999.

It is an arithmetic number, because the mean of its divisors is an integer number (3962989041).

Almost surely, 2^21089792294 is an apocalyptic number.

21089792294 is a deficient number, since it is larger than the sum of its proper divisors (10614120034).

21089792294 is a wasteful number, since it uses less digits than its factorization.

21089792294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23074630.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 21089792294 in words is "twenty-one billion, eighty-nine million, seven hundred ninety-two thousand, two hundred ninety-four".