21169296792 has 192 divisors, whose sum is σ = 67256804160. Its totient is φ = 5889024000.

The previous prime is 21169296769. The next prime is 21169296803. The reversal of 21169296792 is 29769296112.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17625792 + ... + 17626992.

It is an arithmetic number, because the mean of its divisors is an integer number (350295855).

Almost surely, 2^21169296792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21169296792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33628402080).

21169296792 is an abundant number, since it is smaller than the sum of its proper divisors (46087507368).

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

21169296792 is a wasteful number, since it uses less digits than its factorization.

21169296792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2107 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 21169296792 in words is "twenty-one billion, one hundred sixty-nine million, two hundred ninety-six thousand, seven hundred ninety-two".