18959148740 has 24 divisors (see below), whose sum is σ = 45501957312. Its totient is φ = 6500279520.

The previous prime is 18959148709. The next prime is 18959148781. The reversal of 18959148740 is 4784195981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67711106 + ... + 67711385.

It is an arithmetic number, because the mean of its divisors is an integer number (1895914888).

Almost surely, 2^18959148740 is an apocalyptic number.

18959148740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18959148740 is an abundant number, since it is smaller than the sum of its proper divisors (26542808572).

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

18959148740 is a wasteful number, since it uses less digits than its factorization.

18959148740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135422507 (or 135422505 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 18959148740 in words is "eighteen billion, nine hundred fifty-nine million, one hundred forty-eight thousand, seven hundred forty".