18604604330 has 32 divisors (see below), whose sum is σ = 38185744464. Its totient is φ = 6465309696.

The previous prime is 18604604329. The next prime is 18604604339. The reversal of 18604604330 is 3340640681.

It can be written as a sum of positive squares in 8 ways, for example, as 3416753209 + 15187851121 = 58453^2 + 123239^2 .

It is a super-2 number, since 2×18604604330² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18604604339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4206977 + ... + 4211396.

Almost surely, 2^18604604330 is an apocalyptic number.

18604604330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18604604330 is an abundant number, since it is smaller than the sum of its proper divisors (19581140134).

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

18604604330 is a wasteful number, since it uses less digits than its factorization.

18604604330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418410.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 18604604330 in words is "eighteen billion, six hundred four million, six hundred four thousand, three hundred thirty".