12725205427 has 12 divisors (see below), whose sum is σ = 14365247008. Its totient is φ = 11255706000.

The previous prime is 12725205421. The next prime is 12725205439. The reversal of 12725205427 is 72450252721.

It is not a de Polignac number, because 12725205427 - 2³¹ = 10577721779 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12725205421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1416699 + ... + 1425652.

Almost surely, 2^12725205427 is an apocalyptic number.

12725205427 is a deficient number, since it is larger than the sum of its proper divisors (1640041581).

12725205427 is a wasteful number, since it uses less digits than its factorization.

12725205427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842410 (or 2842399 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 37.

The spelling of 12725205427 in words is "twelve billion, seven hundred twenty-five million, two hundred five thousand, four hundred twenty-seven".