18507011090 has 8 divisors (see below), whose sum is σ = 33312619980. Its totient is φ = 7402804432.

The previous prime is 18507011069. The next prime is 18507011141. The reversal of 18507011090 is 9011070581.

It can be written as a sum of positive squares in 2 ways, for example, as 15302432209 + 3204578881 = 123703^2 + 56609^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925350545 + ... + 925350564.

Almost surely, 2^18507011090 is an apocalyptic number.

18507011090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18507011090 is a deficient number, since it is larger than the sum of its proper divisors (14805608890).

18507011090 is a wasteful number, since it uses less digits than its factorization.

18507011090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850701116.

The product of its (nonzero) digits is 2520, while the sum is 32.

The spelling of 18507011090 in words is "eighteen billion, five hundred seven million, eleven thousand, ninety".