670067040397 has 4 divisors (see below), whose sum is σ = 670202221276. Its totient is φ = 669931859520.

The previous prime is 670067040371. The next prime is 670067040413. The reversal of 670067040397 is 793040760076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 615399456676 + 54667583721 = 784474^2 + 233811^2 .

It is a cyclic number.

It is not a de Polignac number, because 670067040397 - 2¹¹ = 670067038349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670067040397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670067040367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67583004 + ... + 67592917.

It is an arithmetic number, because the mean of its divisors is an integer number (167550555319).

Almost surely, 2^670067040397 is an apocalyptic number.

It is an amenable number.

670067040397 is a deficient number, since it is larger than the sum of its proper divisors (135180879).

670067040397 is a wasteful number, since it uses less digits than its factorization.

670067040397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135180878.

The product of its (nonzero) digits is 1333584, while the sum is 49.

The spelling of 670067040397 in words is "six hundred seventy billion, sixty-seven million, forty thousand, three hundred ninety-seven".