18357354769 has 12 divisors (see below), whose sum is σ = 19890597936. Its totient is φ = 16934581872.

The previous prime is 18357354737. The next prime is 18357354833. The reversal of 18357354769 is 96745375381.

It is not a de Polignac number, because 18357354769 - 2⁵ = 18357354737 is a prime.

It is a super-2 number, since 2×18357354769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18357354569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241582 + ... + 308344.

It is an arithmetic number, because the mean of its divisors is an integer number (1657549828).

Almost surely, 2^18357354769 is an apocalyptic number.

It is an amenable number.

18357354769 is a deficient number, since it is larger than the sum of its proper divisors (1533243167).

18357354769 is a wasteful number, since it uses less digits than its factorization.

18357354769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68416 (or 68403 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 58.

The spelling of 18357354769 in words is "eighteen billion, three hundred fifty-seven million, three hundred fifty-four thousand, seven hundred sixty-nine".