6670261439 has 2 divisors, whose sum is σ = 6670261440. Its totient is φ = 6670261438.

The previous prime is 6670261399. The next prime is 6670261531. The reversal of 6670261439 is 9341620766.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6670261439 is a prime.

It is a super-2 number, since 2×6670261439² = 88984775329220701442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6670261439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6670261639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335130719 + 3335130720.

It is an arithmetic number, because the mean of its divisors is an integer number (3335130720).

Almost surely, 2^6670261439 is an apocalyptic number.

6670261439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6670261439 is an equidigital number, since it uses as much as digits as its factorization.

6670261439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 6670261439 is about 81671.6685209749. The cubic root of 6670261439 is about 1882.4102780062.

The spelling of 6670261439 in words is "six billion, six hundred seventy million, two hundred sixty-one thousand, four hundred thirty-nine".