15432142639 has 2 divisors, whose sum is σ = 15432142640. Its totient is φ = 15432142638.

The previous prime is 15432142619. The next prime is 15432142711. The reversal of 15432142639 is 93624123451.

It is a weak prime.

It is an emirp because it is prime and its reverse (93624123451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15432142639 - 2⁷ = 15432142511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15432142619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7716071319 + 7716071320.

It is an arithmetic number, because the mean of its divisors is an integer number (7716071320).

Almost surely, 2^15432142639 is an apocalyptic number.

15432142639 is a deficient number, since it is larger than the sum of its proper divisors (1).

15432142639 is an equidigital number, since it uses as much as digits as its factorization.

15432142639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The spelling of 15432142639 in words is "fifteen billion, four hundred thirty-two million, one hundred forty-two thousand, six hundred thirty-nine".