2471347305491 has 2 divisors, whose sum is σ = 2471347305492. Its totient is φ = 2471347305490.

The previous prime is 2471347305473. The next prime is 2471347305533. The reversal of 2471347305491 is 1945037431742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2471347305491 - 2³⁸ = 2196469398547 is a prime.

It is a super-2 number, since 2×2471347305491² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2471347335491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235673652745 + 1235673652746.

It is an arithmetic number, because the mean of its divisors is an integer number (1235673652746).

Almost surely, 2^{2471347305491} is an apocalyptic number.

2471347305491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2471347305491 is an equidigital number, since it uses as much as digits as its factorization.

2471347305491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 2471347305491 in words is "two trillion, four hundred seventy-one billion, three hundred forty-seven million, three hundred five thousand, four hundred ninety-one".