18645953058 has 16 divisors (see below), whose sum is σ = 41435451360. Its totient is φ = 6215317668.

The previous prime is 18645953023. The next prime is 18645953059. The reversal of 18645953058 is 85035954681.

18645953058 is a `hidden beast` number, since 1 + 8 + 6 + 4 + 59 + 530 + 58 = 666.

It is a super-3 number, since 3×18645953058³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 345295427 = 18645953058 / (1 + 8 + 6 + 4 + 5 + 9 + 5 + 3 + 0 + 5 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 18645952995 and 18645953013.

It is not an unprimeable number, because it can be changed into a prime (18645953059) 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, 172647660 + ... + 172647767.

It is an arithmetic number, because the mean of its divisors is an integer number (2589715710).

Almost surely, 2^18645953058 is an apocalyptic number.

18645953058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18645953058 is an abundant number, since it is smaller than the sum of its proper divisors (22789498302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18645953058 is a wasteful number, since it uses less digits than its factorization.

18645953058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345295438 (or 345295432 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 18645953058 in words is "eighteen billion, six hundred forty-five million, nine hundred fifty-three thousand, fifty-eight".