677345456757 has 4 divisors (see below), whose sum is σ = 903127275680. Its totient is φ = 451563637836.

The previous prime is 677345456731. The next prime is 677345456791. The reversal of 677345456757 is 757654543776.

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 677345456757 - 2⁶ = 677345456693 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 (677345456707) 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, 112890909457 + ... + 112890909462.

It is an arithmetic number, because the mean of its divisors is an integer number (225781818920).

Almost surely, 2^677345456757 is an apocalyptic number.

It is an amenable number.

677345456757 is a deficient number, since it is larger than the sum of its proper divisors (225781818923).

677345456757 is a wasteful number, since it uses less digits than its factorization.

677345456757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225781818922.

The product of its digits is 518616000, while the sum is 66.

The spelling of 677345456757 in words is "six hundred seventy-seven billion, three hundred forty-five million, four hundred fifty-six thousand, seven hundred fifty-seven".