15286545949 has 2 divisors, whose sum is σ = 15286545950. Its totient is φ = 15286545948.

The previous prime is 15286545907. The next prime is 15286545977. The reversal of 15286545949 is 94954568251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13416588900 + 1869957049 = 115830^2 + 43243^2 .

It is a cyclic number.

It is not a de Polignac number, because 15286545949 - 2¹¹ = 15286543901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15286545893 and 15286545902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15286545349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7643272974 + 7643272975.

It is an arithmetic number, because the mean of its divisors is an integer number (7643272975).

Almost surely, 2^15286545949 is an apocalyptic number.

It is an amenable number.

15286545949 is a deficient number, since it is larger than the sum of its proper divisors (1).

15286545949 is an equidigital number, since it uses as much as digits as its factorization.

15286545949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552000, while the sum is 58.

The spelling of 15286545949 in words is "fifteen billion, two hundred eighty-six million, five hundred forty-five thousand, nine hundred forty-nine".