23228690618 has 16 divisors (see below), whose sum is σ = 39825487104. Its totient is φ = 9953934480.

The previous prime is 23228690609. The next prime is 23228690663. The reversal of 23228690618 is 81609682232.

It is a super-2 number, since 2×23228690618² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22088 + ... + 216668.

It is an arithmetic number, because the mean of its divisors is an integer number (2489092944).

Almost surely, 2^23228690618 is an apocalyptic number.

23228690618 is a deficient number, since it is larger than the sum of its proper divisors (16596796486).

23228690618 is a wasteful number, since it uses less digits than its factorization.

23228690618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203117.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 23228690618 in words is "twenty-three billion, two hundred twenty-eight million, six hundred ninety thousand, six hundred eighteen".