18137837157 has 16 divisors (see below), whose sum is σ = 26441883648. Its totient is φ = 10967805680.

The previous prime is 18137837131. The next prime is 18137837161. The reversal of 18137837157 is 75173873181.

It is a cyclic number.

It is not a de Polignac number, because 18137837157 - 2⁶ = 18137837093 is a prime.

It is a super-2 number, since 2×18137837157² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18137837117) 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 15 ways as a sum of consecutive naturals, for example, 605733 + ... + 634970.

It is an arithmetic number, because the mean of its divisors is an integer number (1652617728).

Almost surely, 2^18137837157 is an apocalyptic number.

It is an amenable number.

18137837157 is a deficient number, since it is larger than the sum of its proper divisors (8304046491).

18137837157 is a wasteful number, since it uses less digits than its factorization.

18137837157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241160.

The product of its digits is 987840, while the sum is 51.

The spelling of 18137837157 in words is "eighteen billion, one hundred thirty-seven million, eight hundred thirty-seven thousand, one hundred fifty-seven".