18136833754 has 16 divisors (see below), whose sum is σ = 29304281160. Its totient is φ = 8369040960.

The previous prime is 18136833751. The next prime is 18136833823. The reversal of 18136833754 is 45733863181.

It can be written as a sum of positive squares in 4 ways, for example, as 5696777529 + 12440056225 = 75477^2 + 111535^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18136833698 and 18136833707.

It is not an unprimeable number, because it can be changed into a prime (18136833751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51684 + ... + 197344.

Almost surely, 2^18136833754 is an apocalyptic number.

18136833754 is a deficient number, since it is larger than the sum of its proper divisors (11167447406).

18136833754 is a wasteful number, since it uses less digits than its factorization.

18136833754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150465.

The product of its digits is 1451520, while the sum is 49.

The spelling of 18136833754 in words is "eighteen billion, one hundred thirty-six million, eight hundred thirty-three thousand, seven hundred fifty-four".