12901392427 has 32 divisors (see below), whose sum is σ = 16567027200. Its totient is φ = 9958767840.

The previous prime is 12901392421. The next prime is 12901392431. The reversal of 12901392427 is 72429310921.

It is not a de Polignac number, because 12901392427 - 2⁷ = 12901392299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12901392427.

It is not an unprimeable number, because it can be changed into a prime (12901392421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387733 + ... + 419689.

It is an arithmetic number, because the mean of its divisors is an integer number (517719600).

Almost surely, 2^12901392427 is an apocalyptic number.

12901392427 is a deficient number, since it is larger than the sum of its proper divisors (3665634773).

12901392427 is a wasteful number, since it uses less digits than its factorization.

12901392427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32096 (or 32082 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 12901392427 in words is "twelve billion, nine hundred one million, three hundred ninety-two thousand, four hundred twenty-seven".