18367995924099 has 112 divisors (see below), whose sum is σ = 28570954245120. Its totient is φ = 11795233063680.

The previous prime is 18367995924029. The next prime is 18367995924139. The reversal of 18367995924099 is 99042959976381.

18367995924099 is a `hidden beast` number, since 1 + 8 + 36 + 7 + 9 + 95 + 92 + 409 + 9 = 666.

It is a Cunningham number, because it is equal to 4285790²-1.

It is not a de Polignac number, because 18367995924099 - 2²¹ = 18367993826947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (18367995924029) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3124337242 + ... + 3124343120.

It is an arithmetic number, because the mean of its divisors is an integer number (255097805760).

It is a 1-persistent number, because it is pandigital, but 2⋅18367995924099 = 36735991848198 is not.

Almost surely, 2^{18367995924099} is an apocalyptic number.

18367995924099 is a deficient number, since it is larger than the sum of its proper divisors (10202958321021).

18367995924099 is an equidigital number, since it uses as much as digits as its factorization.

18367995924099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372 (or 7357 counting only the distinct ones).

The product of its (nonzero) digits is 2380855680, while the sum is 81.

The spelling of 18367995924099 in words is "eighteen trillion, three hundred sixty-seven billion, nine hundred ninety-five million, nine hundred twenty-four thousand, ninety-nine".