670731242849 has 2 divisors, whose sum is σ = 670731242850. Its totient is φ = 670731242848.

The previous prime is 670731242773. The next prime is 670731242851. The reversal of 670731242849 is 948242137076.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527465207824 + 143266035025 = 726268^2 + 378505^2 .

It is a cyclic number.

It is not a de Polignac number, because 670731242849 - 2³⁶ = 602011766113 is a prime.

Together with 670731242851, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670731242849.

It is not a weakly prime, because it can be changed into another prime (670731242899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335365621424 + 335365621425.

It is an arithmetic number, because the mean of its divisors is an integer number (335365621425).

Almost surely, 2^670731242849 is an apocalyptic number.

It is an amenable number.

670731242849 is a deficient number, since it is larger than the sum of its proper divisors (1).

670731242849 is an equidigital number, since it uses as much as digits as its factorization.

670731242849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 670731242849 in words is "six hundred seventy billion, seven hundred thirty-one million, two hundred forty-two thousand, eight hundred forty-nine".