18800797456 has 135 divisors (see below), whose sum is σ = 43629691431. Its totient is φ = 7825484352.

The previous prime is 18800797453. The next prime is 18800797481. The reversal of 18800797456 is 65479700881.

The square root of 18800797456 is 137116.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18800797397 and 18800797406.

It is not an unprimeable number, because it can be changed into a prime (18800797453) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 226515591 + ... + 226515673.

Almost surely, 2^18800797456 is an apocalyptic number.

18800797456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18800797456 is the 137116-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18800797456

18800797456 is an abundant number, since it is smaller than the sum of its proper divisors (24828893975).

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

18800797456 is an frugal number, since it uses more digits than its factorization.

18800797456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 18800797456 in words is "eighteen billion, eight hundred million, seven hundred ninety-seven thousand, four hundred fifty-six".