675128066677 has 4 divisors (see below), whose sum is σ = 687866332140. Its totient is φ = 662389801216.

The previous prime is 675128066629. The next prime is 675128066731. The reversal of 675128066677 is 776660821576.

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 573845640676 + 101282426001 = 757526^2 + 318249^2 .

It is a cyclic number.

It is not a de Polignac number, because 675128066677 - 2⁷ = 675128066549 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 (675128066777) 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, 6369132652 + ... + 6369132757.

It is an arithmetic number, because the mean of its divisors is an integer number (171966583035).

Almost surely, 2^675128066677 is an apocalyptic number.

It is an amenable number.

675128066677 is a deficient number, since it is larger than the sum of its proper divisors (12738265463).

675128066677 is a wasteful number, since it uses less digits than its factorization.

675128066677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738265462.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 675128066677 in words is "six hundred seventy-five billion, one hundred twenty-eight million, sixty-six thousand, six hundred seventy-seven".