5191645507 has 2 divisors, whose sum is σ = 5191645508. Its totient is φ = 5191645506.

The previous prime is 5191645499. The next prime is 5191645517. The reversal of 5191645507 is 7055461915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5191645507 - 2³ = 5191645499 is a prime.

It is not a weakly prime, because it can be changed into another prime (5191645517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595822753 + 2595822754.

It is an arithmetic number, because the mean of its divisors is an integer number (2595822754).

Almost surely, 2^5191645507 is an apocalyptic number.

5191645507 is a deficient number, since it is larger than the sum of its proper divisors (1).

5191645507 is an equidigital number, since it uses as much as digits as its factorization.

5191645507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189000, while the sum is 43.

The square root of 5191645507 is about 72053.0742369817. The cubic root of 5191645507 is about 1731.5498943057.

The spelling of 5191645507 in words is "five billion, one hundred ninety-one million, six hundred forty-five thousand, five hundred seven".