15495855847 has 2 divisors, whose sum is σ = 15495855848. Its totient is φ = 15495855846.

The previous prime is 15495855829. The next prime is 15495855857. The reversal of 15495855847 is 74855859451.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15495855847 - 2³¹ = 13348372199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15495855857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7747927923 + 7747927924.

It is an arithmetic number, because the mean of its divisors is an integer number (7747927924).

Almost surely, 2^15495855847 is an apocalyptic number.

15495855847 is a deficient number, since it is larger than the sum of its proper divisors (1).

15495855847 is an equidigital number, since it uses as much as digits as its factorization.

15495855847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320000, while the sum is 61.

The spelling of 15495855847 in words is "fifteen billion, four hundred ninety-five million, eight hundred fifty-five thousand, eight hundred forty-seven".