15015137627491 has 2 divisors, whose sum is σ = 15015137627492. Its totient is φ = 15015137627490.

The previous prime is 15015137627443. The next prime is 15015137627519. The reversal of 15015137627491 is 19472673151051.

It is a strong prime.

It is an emirp because it is prime and its reverse (19472673151051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15015137627491 - 2¹¹ = 15015137625443 is a prime.

It is not a weakly prime, because it can be changed into another prime (15015137627291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7507568813745 + 7507568813746.

It is an arithmetic number, because the mean of its divisors is an integer number (7507568813746).

Almost surely, 2^{15015137627491} is an apocalyptic number.

15015137627491 is a deficient number, since it is larger than the sum of its proper divisors (1).

15015137627491 is an equidigital number, since it uses as much as digits as its factorization.

15015137627491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The spelling of 15015137627491 in words is "fifteen trillion, fifteen billion, one hundred thirty-seven million, six hundred twenty-seven thousand, four hundred ninety-one".