18782251296 has 48 divisors (see below), whose sum is σ = 50352430464. Its totient is φ = 6127541504.

The previous prime is 18782251291. The next prime is 18782251307. The reversal of 18782251296 is 69215228781.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (18782251291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2076855 + ... + 2085878.

It is an arithmetic number, because the mean of its divisors is an integer number (1049008968).

Almost surely, 2^18782251296 is an apocalyptic number.

18782251296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18782251296 is an abundant number, since it is smaller than the sum of its proper divisors (31570179168).

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

18782251296 is a wasteful number, since it uses less digits than its factorization.

18782251296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162793 (or 4162785 counting only the distinct ones).

The product of its digits is 967680, while the sum is 51.

The spelling of 18782251296 in words is "eighteen billion, seven hundred eighty-two million, two hundred fifty-one thousand, two hundred ninety-six".