12390990736 has 40 divisors (see below), whose sum is σ = 25741566720. Its totient is φ = 5757233664.

The previous prime is 12390990673. The next prime is 12390990739. The reversal of 12390990736 is 63709909321.

It is a self number, because there is not a number n which added to its sum of digits gives 12390990736.

It is not an unprimeable number, because it can be changed into a prime (12390990739) 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, 266836 + ... + 309811.

It is an arithmetic number, because the mean of its divisors is an integer number (643539168).

Almost surely, 2^12390990736 is an apocalyptic number.

12390990736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12390990736 is an abundant number, since it is smaller than the sum of its proper divisors (13350575984).

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

12390990736 is a wasteful number, since it uses less digits than its factorization.

12390990736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576751 (or 576745 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 49.

The spelling of 12390990736 in words is "twelve billion, three hundred ninety million, nine hundred ninety thousand, seven hundred thirty-six".