6974459509 has 2 divisors, whose sum is σ = 6974459510. Its totient is φ = 6974459508.

The previous prime is 6974459507. The next prime is 6974459551. The reversal of 6974459509 is 9059544796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6296898609 + 677560900 = 79353^2 + 26030^2 .

It is a cyclic number.

It is not a de Polignac number, because 6974459509 - 2¹ = 6974459507 is a prime.

Together with 6974459507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6974459507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3487229754 + 3487229755.

It is an arithmetic number, because the mean of its divisors is an integer number (3487229755).

Almost surely, 2^6974459509 is an apocalyptic number.

It is an amenable number.

6974459509 is a deficient number, since it is larger than the sum of its proper divisors (1).

6974459509 is an equidigital number, since it uses as much as digits as its factorization.

6974459509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The square root of 6974459509 is about 83513.2295447853. The cubic root of 6974459509 is about 1910.6018140484.

The spelling of 6974459509 in words is "six billion, nine hundred seventy-four million, four hundred fifty-nine thousand, five hundred nine".