15042432397 has 2 divisors, whose sum is σ = 15042432398. Its totient is φ = 15042432396.

The previous prime is 15042432389. The next prime is 15042432413. The reversal of 15042432397 is 79323424051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14957534601 + 84897796 = 122301^2 + 9214^2 .

It is a cyclic number.

It is not a de Polignac number, because 15042432397 - 2³ = 15042432389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15042432697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7521216198 + 7521216199.

It is an arithmetic number, because the mean of its divisors is an integer number (7521216199).

Almost surely, 2^15042432397 is an apocalyptic number.

It is an amenable number.

15042432397 is a deficient number, since it is larger than the sum of its proper divisors (1).

15042432397 is an equidigital number, since it uses as much as digits as its factorization.

15042432397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 15042432397 in words is "fifteen billion, forty-two million, four hundred thirty-two thousand, three hundred ninety-seven".