18846031296 has 112 divisors (see below), whose sum is σ = 52536709760. Its totient is φ = 5945840640.

The previous prime is 18846031291. The next prime is 18846031319. The reversal of 18846031296 is 69213064881.

It is a super-2 number, since 2×18846031296² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18846031291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5911815 + ... + 5915001.

Almost surely, 2^18846031296 is an apocalyptic number.

18846031296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18846031296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26268354880).

18846031296 is an abundant number, since it is smaller than the sum of its proper divisors (33690678464).

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

18846031296 is a wasteful number, since it uses less digits than its factorization.

18846031296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842 (or 4832 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 18846031296 in words is "eighteen billion, eight hundred forty-six million, thirty-one thousand, two hundred ninety-six".