20793518398 has 16 divisors (see below), whose sum is σ = 32217592320. Its totient is φ = 10054762200.

The previous prime is 20793518327. The next prime is 20793518413. The reversal of 20793518398 is 89381539702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14608 + ... + 204451.

It is an arithmetic number, because the mean of its divisors is an integer number (2013599520).

Almost surely, 2^20793518398 is an apocalyptic number.

20793518398 is a deficient number, since it is larger than the sum of its proper divisors (11424073922).

20793518398 is a wasteful number, since it uses less digits than its factorization.

20793518398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220623.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 20793518398 in words is "twenty billion, seven hundred ninety-three million, five hundred eighteen thousand, three hundred ninety-eight".