670831355577 has 4 divisors (see below), whose sum is σ = 894441807440. Its totient is φ = 447220903716.

The previous prime is 670831355533. The next prime is 670831355581. The reversal of 670831355577 is 775553138076.

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 not a de Polignac number, because 670831355577 - 2⁷ = 670831355449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670831355527) 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, 111805225927 + ... + 111805225932.

It is an arithmetic number, because the mean of its divisors is an integer number (223610451860).

Almost surely, 2^670831355577 is an apocalyptic number.

It is an amenable number.

670831355577 is a deficient number, since it is larger than the sum of its proper divisors (223610451863).

670831355577 is a wasteful number, since it uses less digits than its factorization.

670831355577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223610451862.

The product of its (nonzero) digits is 18522000, while the sum is 57.

The spelling of 670831355577 in words is "six hundred seventy billion, eight hundred thirty-one million, three hundred fifty-five thousand, five hundred seventy-seven".