18075889031 has 2 divisors, whose sum is σ = 18075889032. Its totient is φ = 18075889030.

The previous prime is 18075888949. The next prime is 18075889057. The reversal of 18075889031 is 13098857081.

It is a strong prime.

It is an emirp because it is prime and its reverse (13098857081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18075889031 - 2¹⁸ = 18075626887 is a prime.

It is a super-2 number, since 2×18075889031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18075882031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037944515 + 9037944516.

It is an arithmetic number, because the mean of its divisors is an integer number (9037944516).

Almost surely, 2^18075889031 is an apocalyptic number.

18075889031 is a deficient number, since it is larger than the sum of its proper divisors (1).

18075889031 is an equidigital number, since it uses as much as digits as its factorization.

18075889031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 18075889031 in words is "eighteen billion, seventy-five million, eight hundred eighty-nine thousand, thirty-one".