12369775520 has 96 divisors (see below), whose sum is σ = 29841037632. Its totient is φ = 4844449792.

The previous prime is 12369775487. The next prime is 12369775531. The reversal of 12369775520 is 2557796321.

It is a super-2 number, since 2×12369775520² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1496519 + ... + 1504761.

It is an arithmetic number, because the mean of its divisors is an integer number (310844142).

Almost surely, 2^12369775520 is an apocalyptic number.

12369775520 is a gapful number since it is divisible by the number (10) 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 12369775520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14920518816).

12369775520 is an abundant number, since it is smaller than the sum of its proper divisors (17471262112).

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

12369775520 is a wasteful number, since it uses less digits than its factorization.

12369775520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454 (or 8446 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 47.

The spelling of 12369775520 in words is "twelve billion, three hundred sixty-nine million, seven hundred seventy-five thousand, five hundred twenty".