18922863557050 has 48 divisors (see below), whose sum is σ = 37256948483040. Its totient is φ = 7138183631040.

The previous prime is 18922863557027. The next prime is 18922863557069. The reversal of 18922863557050 is 5075536822981.

It is a self number, because there is not a number n which added to its sum of digits gives 18922863557050.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151684752 + ... + 151809451.

It is an arithmetic number, because the mean of its divisors is an integer number (776186426730).

Almost surely, 2^{18922863557050} is an apocalyptic number.

18922863557050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18922863557050 is a deficient number, since it is larger than the sum of its proper divisors (18334084925990).

18922863557050 is a wasteful number, since it uses less digits than its factorization.

18922863557050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303494287 (or 303494282 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 61.

The spelling of 18922863557050 in words is "eighteen trillion, nine hundred twenty-two billion, eight hundred sixty-three million, five hundred fifty-seven thousand, fifty".