15314028649 has 2 divisors, whose sum is σ = 15314028650. Its totient is φ = 15314028648.

The previous prime is 15314028607. The next prime is 15314028677. The reversal of 15314028649 is 94682041351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12671554624 + 2642474025 = 112568^2 + 51405^2 .

It is an emirp because it is prime and its reverse (94682041351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15314028649 - 2¹⁵ = 15313995881 is a prime.

It is not a weakly prime, because it can be changed into another prime (10314028649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7657014324 + 7657014325.

It is an arithmetic number, because the mean of its divisors is an integer number (7657014325).

Almost surely, 2^15314028649 is an apocalyptic number.

It is an amenable number.

15314028649 is a deficient number, since it is larger than the sum of its proper divisors (1).

15314028649 is an equidigital number, since it uses as much as digits as its factorization.

15314028649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 15314028649 in words is "fifteen billion, three hundred fourteen million, twenty-eight thousand, six hundred forty-nine".