18106570939 has 2 divisors, whose sum is σ = 18106570940. Its totient is φ = 18106570938.

The previous prime is 18106570903. The next prime is 18106570949. The reversal of 18106570939 is 93907560181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18106570939 - 2¹¹ = 18106568891 is a prime.

It is a super-2 number, since 2×18106570939² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18106570892 and 18106570901.

It is not a weakly prime, because it can be changed into another prime (18106570949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9053285469 + 9053285470.

It is an arithmetic number, because the mean of its divisors is an integer number (9053285470).

Almost surely, 2^18106570939 is an apocalyptic number.

18106570939 is a deficient number, since it is larger than the sum of its proper divisors (1).

18106570939 is an equidigital number, since it uses as much as digits as its factorization.

18106570939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 49.

It can be divided in two parts, 181065 and 70939, that added together give a square (252004 = 502²).

The spelling of 18106570939 in words is "eighteen billion, one hundred six million, five hundred seventy thousand, nine hundred thirty-nine".