18013751967 has 16 divisors (see below), whose sum is σ = 24230181888. Its totient is φ = 11903461440.

The previous prime is 18013751881. The next prime is 18013751981. The reversal of 18013751967 is 76915731081.

It is not a de Polignac number, because 18013751967 - 2¹⁹ = 18013227679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18013756967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312603 + ... + 365715.

It is an arithmetic number, because the mean of its divisors is an integer number (1514386368).

Almost surely, 2^18013751967 is an apocalyptic number.

18013751967 is a deficient number, since it is larger than the sum of its proper divisors (6216429921).

18013751967 is a wasteful number, since it uses less digits than its factorization.

18013751967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54110.

The product of its (nonzero) digits is 317520, while the sum is 48.

The spelling of 18013751967 in words is "eighteen billion, thirteen million, seven hundred fifty-one thousand, nine hundred sixty-seven".