18922047050 has 24 divisors (see below), whose sum is σ = 35557851756. Its totient is φ = 7490787840.

The previous prime is 18922047041. The next prime is 18922047103. The reversal of 18922047050 is 5074022981.

It can be written as a sum of positive squares in 6 ways, for example, as 1311960841 + 17610086209 = 36221^2 + 132703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18922046995 and 18922047013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1945877 + ... + 1955576.

Almost surely, 2^18922047050 is an apocalyptic number.

18922047050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18922047050 is a deficient number, since it is larger than the sum of its proper divisors (16635804706).

18922047050 is a wasteful number, since it uses less digits than its factorization.

18922047050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901562 (or 3901557 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 18922047050 in words is "eighteen billion, nine hundred twenty-two million, forty-seven thousand, fifty".