670716284457 has 4 divisors (see below), whose sum is σ = 894288379280. Its totient is φ = 447144189636.

The previous prime is 670716284443. The next prime is 670716284473. The reversal of 670716284457 is 754482617076.

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 670716284457 - 2¹¹ = 670716282409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670716284397 and 670716284406.

It is not an unprimeable number, because it can be changed into a prime (670716284477) 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, 111786047407 + ... + 111786047412.

It is an arithmetic number, because the mean of its divisors is an integer number (223572094820).

Almost surely, 2^670716284457 is an apocalyptic number.

It is an amenable number.

670716284457 is a deficient number, since it is larger than the sum of its proper divisors (223572094823).

670716284457 is a wasteful number, since it uses less digits than its factorization.

670716284457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223572094822.

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 670716284457 in words is "six hundred seventy billion, seven hundred sixteen million, two hundred eighty-four thousand, four hundred fifty-seven".