18058252887 has 8 divisors (see below), whose sum is σ = 26752967280. Its totient is φ = 12038835240.

The previous prime is 18058252879. The next prime is 18058252889. The reversal of 18058252887 is 78825285081.

18058252887 is a `hidden beast` number, since 1 + 8 + 0 + 582 + 52 + 8 + 8 + 7 = 666.

It is not a de Polignac number, because 18058252887 - 2³ = 18058252879 is a prime.

It is a super-2 number, since 2×18058252887² (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 (18058252889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334412064 + ... + 334412117.

It is an arithmetic number, because the mean of its divisors is an integer number (3344120910).

Almost surely, 2^18058252887 is an apocalyptic number.

18058252887 is a deficient number, since it is larger than the sum of its proper divisors (8694714393).

18058252887 is an equidigital number, since it uses as much as digits as its factorization.

18058252887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668824190 (or 668824184 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 54.

The spelling of 18058252887 in words is "eighteen billion, fifty-eight million, two hundred fifty-two thousand, eight hundred eighty-seven".