15307679149457 has 2 divisors, whose sum is σ = 15307679149458. Its totient is φ = 15307679149456.

The previous prime is 15307679149453. The next prime is 15307679149459. The reversal of 15307679149457 is 75494197670351.

15307679149457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15255203335681 + 52475813776 = 3905791^2 + 229076^2 .

It is an emirp because it is prime and its reverse (75494197670351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15307679149457 - 2² = 15307679149453 is a prime.

Together with 15307679149459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15307679149453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7653839574728 + 7653839574729.

It is an arithmetic number, because the mean of its divisors is an integer number (7653839574729).

Almost surely, 2^{15307679149457} is an apocalyptic number.

It is an amenable number.

15307679149457 is a deficient number, since it is larger than the sum of its proper divisors (1).

15307679149457 is an equidigital number, since it uses as much as digits as its factorization.

15307679149457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200037600, while the sum is 68.

The spelling of 15307679149457 in words is "fifteen trillion, three hundred seven billion, six hundred seventy-nine million, one hundred forty-nine thousand, four hundred fifty-seven".