13640760347 has 2 divisors, whose sum is σ = 13640760348. Its totient is φ = 13640760346.

The previous prime is 13640760253. The next prime is 13640760349. The reversal of 13640760347 is 74306704631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13640760347 - 2¹² = 13640756251 is a prime.

Together with 13640760349, 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 (13640760349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6820380173 + 6820380174.

It is an arithmetic number, because the mean of its divisors is an integer number (6820380174).

Almost surely, 2^13640760347 is an apocalyptic number.

13640760347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13640760347 is an equidigital number, since it uses as much as digits as its factorization.

13640760347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 13640760347 in words is "thirteen billion, six hundred forty million, seven hundred sixty thousand, three hundred forty-seven".