18937914330 has 32 divisors (see below), whose sum is σ = 45502648128. Its totient is φ = 5044371200.

The previous prime is 18937914329. The next prime is 18937914361. The reversal of 18937914330 is 3341973981.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18937914330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331836 + ... + 384695.

It is an arithmetic number, because the mean of its divisors is an integer number (1421957754).

Almost surely, 2^18937914330 is an apocalyptic number.

18937914330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18937914330 is an abundant number, since it is smaller than the sum of its proper divisors (26564733798).

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

18937914330 is a wasteful number, since it uses less digits than its factorization.

18937914330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717422.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 18937914330 in words is "eighteen billion, nine hundred thirty-seven million, nine hundred fourteen thousand, three hundred thirty".