18869805330 has 32 divisors (see below), whose sum is σ = 45331532928. Its totient is φ = 5027059200.

The previous prime is 18869805329. The next prime is 18869805349. The reversal of 18869805330 is 3350896881.

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, 274111 + ... + 335970.

It is an arithmetic number, because the mean of its divisors is an integer number (1416610404).

Almost surely, 2^18869805330 is an apocalyptic number.

18869805330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18869805330 is an abundant number, since it is smaller than the sum of its proper divisors (26461727598).

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

18869805330 is a wasteful number, since it uses less digits than its factorization.

18869805330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611122.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 18869805330 in words is "eighteen billion, eight hundred sixty-nine million, eight hundred five thousand, three hundred thirty".