706737373649 has 2 divisors, whose sum is σ = 706737373650. Its totient is φ = 706737373648.

The previous prime is 706737373621. The next prime is 706737373757. The reversal of 706737373649 is 946373737607.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703828713025 + 2908660624 = 838945^2 + 53932^2 .

It is a cyclic number.

It is not a de Polignac number, because 706737373649 - 2²⁰ = 706736325073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 706737373591 and 706737373600.

It is not a weakly prime, because it can be changed into another prime (706737370649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353368686824 + 353368686825.

It is an arithmetic number, because the mean of its divisors is an integer number (353368686825).

Almost surely, 2^706737373649 is an apocalyptic number.

It is an amenable number.

706737373649 is a deficient number, since it is larger than the sum of its proper divisors (1).

706737373649 is an equidigital number, since it uses as much as digits as its factorization.

706737373649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84015792, while the sum is 62.

The spelling of 706737373649 in words is "seven hundred six billion, seven hundred thirty-seven million, three hundred seventy-three thousand, six hundred forty-nine".