701649064849 has 2 divisors, whose sum is σ = 701649064850. Its totient is φ = 701649064848.

The previous prime is 701649064807. The next prime is 701649064867. The reversal of 701649064849 is 948460946107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494412891025 + 207236173824 = 703145^2 + 455232^2 .

It is a cyclic number.

It is not a de Polignac number, because 701649064849 - 2¹⁹ = 701648540561 is a prime.

It is a super-2 number, since 2×701649064849² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 701649064793 and 701649064802.

It is not a weakly prime, because it can be changed into another prime (701649064049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350824532424 + 350824532425.

It is an arithmetic number, because the mean of its divisors is an integer number (350824532425).

Almost surely, 2^701649064849 is an apocalyptic number.

It is an amenable number.

701649064849 is a deficient number, since it is larger than the sum of its proper divisors (1).

701649064849 is an equidigital number, since it uses as much as digits as its factorization.

701649064849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 701649064849 in words is "seven hundred one billion, six hundred forty-nine million, sixty-four thousand, eight hundred forty-nine".