15728714461 has 2 divisors, whose sum is σ = 15728714462. Its totient is φ = 15728714460.

The previous prime is 15728714459. The next prime is 15728714471. The reversal of 15728714461 is 16441782751.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13983062500 + 1745651961 = 118250^2 + 41781^2 .

It is a cyclic number.

It is not a de Polignac number, because 15728714461 - 2¹ = 15728714459 is a prime.

Together with 15728714459, 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 (15728714411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7864357230 + 7864357231.

It is an arithmetic number, because the mean of its divisors is an integer number (7864357231).

Almost surely, 2^15728714461 is an apocalyptic number.

It is an amenable number.

15728714461 is a deficient number, since it is larger than the sum of its proper divisors (1).

15728714461 is an equidigital number, since it uses as much as digits as its factorization.

15728714461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 46.

The spelling of 15728714461 in words is "fifteen billion, seven hundred twenty-eight million, seven hundred fourteen thousand, four hundred sixty-one".