18334736120463 has 128 divisors (see below), whose sum is σ = 30089383870464. Its totient is φ = 9693250560000.

The previous prime is 18334736120443. The next prime is 18334736120501. The reversal of 18334736120463 is 36402163743381.

It is a Cunningham number, because it is equal to 4281908²-1.

It is not a de Polignac number, because 18334736120463 - 2⁵ = 18334736120431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18334736120423) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4525975788 + ... + 4525979838.

It is an arithmetic number, because the mean of its divisors is an integer number (235073311488).

Almost surely, 2^{18334736120463} is an apocalyptic number.

18334736120463 is a deficient number, since it is larger than the sum of its proper divisors (11754647750001).

18334736120463 is a wasteful number, since it uses less digits than its factorization.

18334736120463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085.

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 18334736120463 in words is "eighteen trillion, three hundred thirty-four billion, seven hundred thirty-six million, one hundred twenty thousand, four hundred sixty-three".