12903995427 has 16 divisors (see below), whose sum is σ = 17932781568. Its totient is φ = 8244325440.

The previous prime is 12903995389. The next prime is 12903995441. The reversal of 12903995427 is 72459930921.

It is not a de Polignac number, because 12903995427 - 2¹⁰ = 12903994403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12903995427.

It is not an unprimeable number, because it can be changed into a prime (12903995497) 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, 663978 + ... + 683135.

It is an arithmetic number, because the mean of its divisors is an integer number (1120798848).

Almost surely, 2^12903995427 is an apocalyptic number.

12903995427 is a deficient number, since it is larger than the sum of its proper divisors (5028786141).

12903995427 is a wasteful number, since it uses less digits than its factorization.

12903995427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347250.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 12903995427 in words is "twelve billion, nine hundred three million, nine hundred ninety-five thousand, four hundred twenty-seven".