18850306810 has 32 divisors (see below), whose sum is σ = 34105361040. Its totient is φ = 7501358592.

The previous prime is 18850306807. The next prime is 18850306823. The reversal of 18850306810 is 1860305881.

It can be written as a sum of positive squares in 8 ways, for example, as 1095543801 + 17754763009 = 33099^2 + 133247^2 .

It is a super-2 number, since 2×18850306810² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031702 + ... + 2040958.

Almost surely, 2^18850306810 is an apocalyptic number.

18850306810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18850306810 is a deficient number, since it is larger than the sum of its proper divisors (15255054230).

18850306810 is a wasteful number, since it uses less digits than its factorization.

18850306810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 18850306810 in words is "eighteen billion, eight hundred fifty million, three hundred six thousand, eight hundred ten".