20794579231 has 8 divisors (see below), whose sum is σ = 22041056880. Its totient is φ = 19550686848.

The previous prime is 20794579189. The next prime is 20794579237. The reversal of 20794579231 is 13297549702.

It is a happy number.

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 20794579231 - 2¹⁵ = 20794546463 is a prime.

It is a super-2 number, since 2×20794579231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20794579237) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 629736 + ... + 661933.

It is an arithmetic number, because the mean of its divisors is an integer number (2755132110).

Almost surely, 2^20794579231 is an apocalyptic number.

20794579231 is a deficient number, since it is larger than the sum of its proper divisors (1246477649).

20794579231 is a wasteful number, since it uses less digits than its factorization.

20794579231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292633.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 20794579231 in words is "twenty billion, seven hundred ninety-four million, five hundred seventy-nine thousand, two hundred thirty-one".