18846722952 has 60 divisors (see below), whose sum is σ = 52798065045. Its totient is φ = 6281076096.

The previous prime is 18846722941. The next prime is 18846722957. The reversal of 18846722952 is 25922764881.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 13408250436 + 5438472516 = 115794^2 + 73746^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=97074.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18846722957) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3491968 + ... + 3497360.

Almost surely, 2^18846722952 is an apocalyptic number.

18846722952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18846722952 is an abundant number, since it is smaller than the sum of its proper divisors (33951342093).

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

18846722952 is an frugal number, since it uses more digits than its factorization.

18846722952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10804 (or 5398 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 18846722952 in words is "eighteen billion, eight hundred forty-six million, seven hundred twenty-two thousand, nine hundred fifty-two".