19116179850 has 24 divisors (see below), whose sum is σ = 47408126400. Its totient is φ = 5097647920.

The previous prime is 19116179743. The next prime is 19116179869. The reversal of 19116179850 is 5897161191.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19116179850.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63720450 + ... + 63720749.

It is an arithmetic number, because the mean of its divisors is an integer number (1975338600).

Almost surely, 2^19116179850 is an apocalyptic number.

19116179850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19116179850 is an abundant number, since it is smaller than the sum of its proper divisors (28291946550).

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

19116179850 is a wasteful number, since it uses less digits than its factorization.

19116179850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127441214 (or 127441209 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 48.

The spelling of 19116179850 in words is "nineteen billion, one hundred sixteen million, one hundred seventy-nine thousand, eight hundred fifty".