15711428389 has 2 divisors, whose sum is σ = 15711428390. Its totient is φ = 15711428388.

The previous prime is 15711428387. The next prime is 15711428399. The reversal of 15711428389 is 98382411751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15660520164 + 50908225 = 125142^2 + 7135^2 .

It is a cyclic number.

It is not a de Polignac number, because 15711428389 - 2¹ = 15711428387 is a prime.

Together with 15711428387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15711428387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7855714194 + 7855714195.

It is an arithmetic number, because the mean of its divisors is an integer number (7855714195).

Almost surely, 2^15711428389 is an apocalyptic number.

It is an amenable number.

15711428389 is a deficient number, since it is larger than the sum of its proper divisors (1).

15711428389 is an equidigital number, since it uses as much as digits as its factorization.

15711428389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 49.

The spelling of 15711428389 in words is "fifteen billion, seven hundred eleven million, four hundred twenty-eight thousand, three hundred eighty-nine".