12490391712 has 48 divisors (see below), whose sum is σ = 32881312800. Its totient is φ = 4151523072.

The previous prime is 12490391699. The next prime is 12490391723. The reversal of 12490391712 is 21719309421.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152898 + ... + 219905.

It is an arithmetic number, because the mean of its divisors is an integer number (685027350).

Almost surely, 2^12490391712 is an apocalyptic number.

12490391712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12490391712 is an abundant number, since it is smaller than the sum of its proper divisors (20390921088).

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

12490391712 is a wasteful number, since it uses less digits than its factorization.

12490391712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373165 (or 373157 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 12490391712 in words is "twelve billion, four hundred ninety million, three hundred ninety-one thousand, seven hundred twelve".