12390572879 has 2 divisors, whose sum is σ = 12390572880. Its totient is φ = 12390572878.

The previous prime is 12390572863. The next prime is 12390572891. The reversal of 12390572879 is 97827509321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12390572879 - 2⁴ = 12390572863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12390572879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12390512879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6195286439 + 6195286440.

It is an arithmetic number, because the mean of its divisors is an integer number (6195286440).

Almost surely, 2^12390572879 is an apocalyptic number.

12390572879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12390572879 is an equidigital number, since it uses as much as digits as its factorization.

12390572879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 12390572879 in words is "twelve billion, three hundred ninety million, five hundred seventy-two thousand, eight hundred seventy-nine".