20783295879 has 8 divisors (see below), whose sum is σ = 27711922560. Its totient is φ = 13855099896.

The previous prime is 20783295877. The next prime is 20783295893. The reversal of 20783295879 is 97859238702.

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

It is not a de Polignac number, because 20783295879 - 2¹ = 20783295877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20783295877) 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, 30112 + ... + 206090.

It is an arithmetic number, because the mean of its divisors is an integer number (3463990320).

Almost surely, 2^20783295879 is an apocalyptic number.

20783295879 is a deficient number, since it is larger than the sum of its proper divisors (6928626681).

20783295879 is a wasteful number, since it uses less digits than its factorization.

20783295879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215349.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 20783295879 in words is "twenty billion, seven hundred eighty-three million, two hundred ninety-five thousand, eight hundred seventy-nine".