670383701887 has 4 divisors (see below), whose sum is σ = 670386613176. Its totient is φ = 670380790600.

The previous prime is 670383701839. The next prime is 670383701921. The reversal of 670383701887 is 788107383076.

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

It is a cyclic number.

It is not a de Polignac number, because 670383701887 - 2¹⁹ = 670383177599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670383701807) 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, 1077493 + ... + 1581694.

It is an arithmetic number, because the mean of its divisors is an integer number (167596653294).

Almost surely, 2^670383701887 is an apocalyptic number.

670383701887 is a deficient number, since it is larger than the sum of its proper divisors (2911289).

670383701887 is a wasteful number, since it uses less digits than its factorization.

670383701887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911288.

The product of its (nonzero) digits is 9483264, while the sum is 58.

The spelling of 670383701887 in words is "six hundred seventy billion, three hundred eighty-three million, seven hundred one thousand, eight hundred eighty-seven".