12591390460 has 48 divisors (see below), whose sum is σ = 28891763712. Its totient is φ = 4571380800.

The previous prime is 12591390451. The next prime is 12591390463. The reversal of 12591390460 is 6409319521.

It is a super-2 number, since 2×12591390460² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12591390463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93469 + ... + 184171.

It is an arithmetic number, because the mean of its divisors is an integer number (601911744).

Almost surely, 2^12591390460 is an apocalyptic number.

12591390460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12591390460 is an abundant number, since it is smaller than the sum of its proper divisors (16300373252).

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

12591390460 is a wasteful number, since it uses less digits than its factorization.

12591390460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91354 (or 91352 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 12591390460 in words is "twelve billion, five hundred ninety-one million, three hundred ninety thousand, four hundred sixty".