18042803415 has 192 divisors, whose sum is σ = 40145414400. Its totient is φ = 7290888192.

The previous prime is 18042803381. The next prime is 18042803419. The reversal of 18042803415 is 51430824081.

It is not a de Polignac number, because 18042803415 - 2¹² = 18042799319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18042803415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18042803419) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16268881 + ... + 16269989.

It is an arithmetic number, because the mean of its divisors is an integer number (209090700).

Almost surely, 2^18042803415 is an apocalyptic number.

18042803415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18042803415 is an abundant number, since it is smaller than the sum of its proper divisors (22102610985).

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

18042803415 is a wasteful number, since it uses less digits than its factorization.

18042803415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 18042803415 in words is "eighteen billion, forty-two million, eight hundred three thousand, four hundred fifteen".