15212475827 has 2 divisors, whose sum is σ = 15212475828. Its totient is φ = 15212475826.

The previous prime is 15212475791. The next prime is 15212475829. The reversal of 15212475827 is 72857421251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15212475827 - 2²⁰ = 15211427251 is a prime.

Together with 15212475829, 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 (15212475829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606237913 + 7606237914.

It is an arithmetic number, because the mean of its divisors is an integer number (7606237914).

Almost surely, 2^15212475827 is an apocalyptic number.

15212475827 is a deficient number, since it is larger than the sum of its proper divisors (1).

15212475827 is an equidigital number, since it uses as much as digits as its factorization.

15212475827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 44.

The spelling of 15212475827 in words is "fifteen billion, two hundred twelve million, four hundred seventy-five thousand, eight hundred twenty-seven".