18072035847 has 32 divisors (see below), whose sum is σ = 28531906560. Its totient is φ = 11278982880.

The previous prime is 18072035791. The next prime is 18072035881. The reversal of 18072035847 is 74853027081.

It is not a de Polignac number, because 18072035847 - 2¹⁶ = 18071970311 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18072035447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280404 + ... + 338777.

It is an arithmetic number, because the mean of its divisors is an integer number (891622080).

Almost surely, 2^18072035847 is an apocalyptic number.

18072035847 is a deficient number, since it is larger than the sum of its proper divisors (10459870713).

18072035847 is a wasteful number, since it uses less digits than its factorization.

18072035847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619260 (or 619254 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 18072035847 in words is "eighteen billion, seventy-two million, thirty-five thousand, eight hundred forty-seven".