670046640077 has 4 divisors (see below), whose sum is σ = 684302951616. Its totient is φ = 655790328540.

The previous prime is 670046640047. The next prime is 670046640083. The reversal of 670046640077 is 770046640076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 670046640077 - 2¹² = 670046635981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 14256311491 = 670046640077 / (6 + 7 + 0 + 0 + 4 + 6 + 6 + 4 + 0 + 0 + 7 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670046640047) 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 in 3 ways as a sum of consecutive naturals, for example, 7128155699 + ... + 7128155792.

It is an arithmetic number, because the mean of its divisors is an integer number (171075737904).

Almost surely, 2^670046640077 is an apocalyptic number.

It is an amenable number.

670046640077 is a deficient number, since it is larger than the sum of its proper divisors (14256311539).

670046640077 is a wasteful number, since it uses less digits than its factorization.

670046640077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14256311538.

The product of its (nonzero) digits is 1185408, while the sum is 47.

Subtracting 670046640077 from its reverse (770046640076), we obtain a palindrome (99999999999).

The spelling of 670046640077 in words is "six hundred seventy billion, forty-six million, six hundred forty thousand, seventy-seven".