15251011849 has 2 divisors, whose sum is σ = 15251011850. Its totient is φ = 15251011848.

The previous prime is 15251011843. The next prime is 15251011861. The reversal of 15251011849 is 94811015251.

It is a happy number.

15251011849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10594996624 + 4656015225 = 102932^2 + 68235^2 .

It is an emirp because it is prime and its reverse (94811015251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15251011849 - 2²³ = 15242623241 is a prime.

It is not a weakly prime, because it can be changed into another prime (15251011843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7625505924 + 7625505925.

It is an arithmetic number, because the mean of its divisors is an integer number (7625505925).

Almost surely, 2^15251011849 is an apocalyptic number.

It is an amenable number.

15251011849 is a deficient number, since it is larger than the sum of its proper divisors (1).

15251011849 is an equidigital number, since it uses as much as digits as its factorization.

15251011849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 37.

The spelling of 15251011849 in words is "fifteen billion, two hundred fifty-one million, eleven thousand, eight hundred forty-nine".