6740397959 has 2 divisors, whose sum is σ = 6740397960. Its totient is φ = 6740397958.

The previous prime is 6740397943. The next prime is 6740397967. The reversal of 6740397959 is 9597930476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6740397959 - 2⁴ = 6740397943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6740397898 and 6740397907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6740394959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370198979 + 3370198980.

It is an arithmetic number, because the mean of its divisors is an integer number (3370198980).

Almost surely, 2^6740397959 is an apocalyptic number.

6740397959 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740397959 is an equidigital number, since it uses as much as digits as its factorization.

6740397959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12859560, while the sum is 59.

The square root of 6740397959 is about 82099.9266686640. The cubic root of 6740397959 is about 1888.9850152427.

The spelling of 6740397959 in words is "six billion, seven hundred forty million, three hundred ninety-seven thousand, nine hundred fifty-nine".