18958228335 has 16 divisors (see below), whose sum is σ = 33703517280. Its totient is φ = 10111055040.

The previous prime is 18958228297. The next prime is 18958228363. The reversal of 18958228335 is 53382285981.

18958228335 is a `hidden beast` number, since 1 + 8 + 9 + 582 + 28 + 3 + 35 = 666.

It is not a de Polignac number, because 18958228335 - 2²⁵ = 18924673903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70215526 + ... + 70215795.

It is an arithmetic number, because the mean of its divisors is an integer number (2106469830).

Almost surely, 2^18958228335 is an apocalyptic number.

18958228335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18958228335 is a deficient number, since it is larger than the sum of its proper divisors (14745288945).

18958228335 is a wasteful number, since it uses less digits than its factorization.

18958228335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140431335 (or 140431329 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 18958228335 in words is "eighteen billion, nine hundred fifty-eight million, two hundred twenty-eight thousand, three hundred thirty-five".