18074167072 has 24 divisors (see below), whose sum is σ = 38320710876. Its totient is φ = 8341923072.

The previous prime is 18074167039. The next prime is 18074167079. The reversal of 18074167072 is 27076147081.

It can be written as a sum of positive squares in 2 ways, for example, as 17839342096 + 234824976 = 133564^2 + 15324^2 .

It is not an unprimeable number, because it can be changed into a prime (18074167079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21723343 + ... + 21724174.

Almost surely, 2^18074167072 is an apocalyptic number.

It is an amenable number.

18074167072 is an abundant number, since it is smaller than the sum of its proper divisors (20246543804).

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

18074167072 is a wasteful number, since it uses less digits than its factorization.

18074167072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43447540 (or 43447532 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 43.

The spelling of 18074167072 in words is "eighteen billion, seventy-four million, one hundred sixty-seven thousand, seventy-two".