18914872350 has 192 divisors, whose sum is σ = 55508447232. Its totient is φ = 4210176000.

The previous prime is 18914872349. The next prime is 18914872357. The reversal of 18914872350 is 5327841981.

It is a self number, because there is not a number n which added to its sum of digits gives 18914872350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18914872357) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1141827 + ... + 1158273.

It is an arithmetic number, because the mean of its divisors is an integer number (289106496).

Almost surely, 2^18914872350 is an apocalyptic number.

18914872350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18914872350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27754223616).

18914872350 is an abundant number, since it is smaller than the sum of its proper divisors (36593574882).

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

18914872350 is a wasteful number, since it uses less digits than its factorization.

18914872350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16531 (or 16526 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 18914872350 in words is "eighteen billion, nine hundred fourteen million, eight hundred seventy-two thousand, three hundred fifty".