670240338949 has 2 divisors, whose sum is σ = 670240338950. Its totient is φ = 670240338948.

The previous prime is 670240338863. The next prime is 670240338973. The reversal of 670240338949 is 949833042076.

It is a happy number.

670240338949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 660330136449 + 9910202500 = 812607^2 + 99550^2 .

It is a cyclic number.

It is not a de Polignac number, because 670240338949 - 2¹¹ = 670240336901 is a prime.

It is a super-2 number, since 2×670240338949² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 670240338949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670240338979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335120169474 + 335120169475.

It is an arithmetic number, because the mean of its divisors is an integer number (335120169475).

Almost surely, 2^670240338949 is an apocalyptic number.

It is an amenable number.

670240338949 is a deficient number, since it is larger than the sum of its proper divisors (1).

670240338949 is an equidigital number, since it uses as much as digits as its factorization.

670240338949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 670240338949 in words is "six hundred seventy billion, two hundred forty million, three hundred thirty-eight thousand, nine hundred forty-nine".