18227699058 has 32 divisors (see below), whose sum is σ = 38618562240. Its totient is φ = 5719446720.

The previous prime is 18227699053. The next prime is 18227699069. The reversal of 18227699058 is 85099672281.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 18227698989 and 18227699007.

It is not an unprimeable number, because it can be changed into a prime (18227699053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491313 + ... + 527108.

It is an arithmetic number, because the mean of its divisors is an integer number (1206830070).

Almost surely, 2^18227699058 is an apocalyptic number.

18227699058 is an abundant number, since it is smaller than the sum of its proper divisors (20390863182).

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

18227699058 is a wasteful number, since it uses less digits than its factorization.

18227699058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018602.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 18227699058 in words is "eighteen billion, two hundred twenty-seven million, six hundred ninety-nine thousand, fifty-eight".