15473274491 has 2 divisors, whose sum is σ = 15473274492. Its totient is φ = 15473274490.

The previous prime is 15473274461. The next prime is 15473274493. The reversal of 15473274491 is 19447237451.

It is a strong prime.

It is an emirp because it is prime and its reverse (19447237451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15473274491 - 2¹⁴ = 15473258107 is a prime.

Together with 15473274493, 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 (15473274493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7736637245 + 7736637246.

It is an arithmetic number, because the mean of its divisors is an integer number (7736637246).

Almost surely, 2^15473274491 is an apocalyptic number.

15473274491 is a deficient number, since it is larger than the sum of its proper divisors (1).

15473274491 is an equidigital number, since it uses as much as digits as its factorization.

15473274491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The spelling of 15473274491 in words is "fifteen billion, four hundred seventy-three million, two hundred seventy-four thousand, four hundred ninety-one".