20390050092 has 18 divisors (see below), whose sum is σ = 47577937764. Its totient is φ = 6796518480.

The previous prime is 20390050069. The next prime is 20390050103. The reversal of 20390050092 is 29005009302.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 474042 + ... + 515262.

Almost surely, 2^20390050092 is an apocalyptic number.

It is an amenable number.

20390050092 is an abundant number, since it is smaller than the sum of its proper divisors (27187887672).

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

20390050092 is an frugal number, since it uses more digits than its factorization.

20390050092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82449 (or 41226 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

Adding to 20390050092 its reverse (29005009302), we get a palindrome (49395059394).

The spelling of 20390050092 in words is "twenty billion, three hundred ninety million, fifty thousand, ninety-two".