6340690511 has 2 divisors, whose sum is σ = 6340690512. Its totient is φ = 6340690510.

The previous prime is 6340690501. The next prime is 6340690513. The reversal of 6340690511 is 1150960436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6340690511 - 2²⁶ = 6273581647 is a prime.

It is a super-2 number, since 2×6340690511² = 80408712312570882242, which contains 22 as substring.

Together with 6340690513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6340690513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170345255 + 3170345256.

It is an arithmetic number, because the mean of its divisors is an integer number (3170345256).

Almost surely, 2^6340690511 is an apocalyptic number.

6340690511 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340690511 is an equidigital number, since it uses as much as digits as its factorization.

6340690511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 6340690511 is about 79628.4528984458. The cubic root of 6340690511 is about 1850.8825115972.

The spelling of 6340690511 in words is "six billion, three hundred forty million, six hundred ninety thousand, five hundred eleven".