18237013157 has 12 divisors (see below), whose sum is σ = 20692280448. Its totient is φ = 16044289800.

The previous prime is 18237013133. The next prime is 18237013189. The reversal of 18237013157 is 75131073281.

It is not a de Polignac number, because 18237013157 - 2¹² = 18237009061 is a prime.

It is a super-2 number, since 2×18237013157² (a number of 21 digits) contains 22 as substring.

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 18237013157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18237013357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2427203 + ... + 2434704.

It is an arithmetic number, because the mean of its divisors is an integer number (1724356704).

Almost surely, 2^18237013157 is an apocalyptic number.

It is an amenable number.

18237013157 is a deficient number, since it is larger than the sum of its proper divisors (2455267291).

18237013157 is a wasteful number, since it uses less digits than its factorization.

18237013157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861960 (or 4861949 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 18237013157 in words is "eighteen billion, two hundred thirty-seven million, thirteen thousand, one hundred fifty-seven".