19180508854 has 16 divisors (see below), whose sum is σ = 32614631280. Its totient is φ = 8386619040.

The previous prime is 19180508819. The next prime is 19180508857. The reversal of 19180508854 is 45880508191.

It is a junction number, because it is equal to n+sod(n) for n = 19180508798 and 19180508807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19180508857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19412977 + ... + 19413964.

It is an arithmetic number, because the mean of its divisors is an integer number (2038414455).

Almost surely, 2^19180508854 is an apocalyptic number.

19180508854 is a deficient number, since it is larger than the sum of its proper divisors (13434122426).

19180508854 is a wasteful number, since it uses less digits than its factorization.

19180508854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38826975.

The product of its (nonzero) digits is 460800, while the sum is 49.

The spelling of 19180508854 in words is "nineteen billion, one hundred eighty million, five hundred eight thousand, eight hundred fifty-four".