18999382345090 has 32 divisors (see below), whose sum is σ = 39084698674944. Its totient is φ = 6514031448000.

The previous prime is 18999382345081. The next prime is 18999382345127. The reversal of 18999382345090 is 9054328399981.

It is a Harshad number since it is a multiple of its sum of digits (70).

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, 11064427 + ... + 12665713.

It is an arithmetic number, because the mean of its divisors is an integer number (1221396833592).

Almost surely, 2^{18999382345090} is an apocalyptic number.

18999382345090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18999382345090 is an abundant number, since it is smaller than the sum of its proper divisors (20085316329854).

18999382345090 is a wasteful number, since it uses less digits than its factorization.

18999382345090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770802.

The product of its (nonzero) digits is 151165440, while the sum is 70.

The spelling of 18999382345090 in words is "eighteen trillion, nine hundred ninety-nine billion, three hundred eighty-two million, three hundred forty-five thousand, ninety".