18552472458 has 64 divisors (see below), whose sum is σ = 40624657920. Its totient is φ = 5613676992.

The previous prime is 18552472447. The next prime is 18552472469. The reversal of 18552472458 is 85427425581.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18552472447) and next prime (18552472469).

It is a self number, because there is not a number n which added to its sum of digits gives 18552472458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3441241 + ... + 3446627.

It is an arithmetic number, because the mean of its divisors is an integer number (634760280).

Almost surely, 2^18552472458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18552472458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20312328960).

18552472458 is an abundant number, since it is smaller than the sum of its proper divisors (22072185462).

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

18552472458 is a wasteful number, since it uses less digits than its factorization.

18552472458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131.

The product of its digits is 3584000, while the sum is 51.

The spelling of 18552472458 in words is "eighteen billion, five hundred fifty-two million, four hundred seventy-two thousand, four hundred fifty-eight".