20785598079 has 8 divisors (see below), whose sum is σ = 27716099712. Its totient is φ = 13856080920.

The previous prime is 20785598051. The next prime is 20785598081. The reversal of 20785598079 is 97089558702.

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

It is not a de Polignac number, because 20785598079 - 2¹⁹ = 20785073791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20785598039) 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, 195357 + ... + 282374.

It is an arithmetic number, because the mean of its divisors is an integer number (3464512464).

Almost surely, 2^20785598079 is an apocalyptic number.

20785598079 is a deficient number, since it is larger than the sum of its proper divisors (6930501633).

20785598079 is a wasteful number, since it uses less digits than its factorization.

20785598079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492237.

The product of its (nonzero) digits is 12700800, while the sum is 60.

The spelling of 20785598079 in words is "twenty billion, seven hundred eighty-five million, five hundred ninety-eight thousand, seventy-nine".