18137765293 has 16 divisors (see below), whose sum is σ = 19812114432. Its totient is φ = 16552998000.

The previous prime is 18137765267. The next prime is 18137765297. The reversal of 18137765293 is 39256773181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18137765293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18137765293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18137765297) 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, 128523 + ... + 229768.

It is an arithmetic number, because the mean of its divisors is an integer number (1238257152).

Almost surely, 2^18137765293 is an apocalyptic number.

It is an amenable number.

18137765293 is a deficient number, since it is larger than the sum of its proper divisors (1674349139).

18137765293 is a wasteful number, since it uses less digits than its factorization.

18137765293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358416.

The product of its digits is 1905120, while the sum is 52.

The spelling of 18137765293 in words is "eighteen billion, one hundred thirty-seven million, seven hundred sixty-five thousand, two hundred ninety-three".