675525728727 has 24 divisors (see below), whose sum is σ = 982594735200. Its totient is φ = 447197474880.

The previous prime is 675525728719. The next prime is 675525728743. The reversal of 675525728727 is 727827525576.

It is a happy number.

675525728727 is a `hidden beast` number, since 6 + 7 + 5 + 52 + 572 + 8 + 7 + 2 + 7 = 666.

It is not a de Polignac number, because 675525728727 - 2³ = 675525728719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675525728747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4636513 + ... + 4779989.

It is an arithmetic number, because the mean of its divisors is an integer number (40941447300).

Almost surely, 2^675525728727 is an apocalyptic number.

675525728727 is a deficient number, since it is larger than the sum of its proper divisors (307069006473).

675525728727 is a wasteful number, since it uses less digits than its factorization.

675525728727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147143 (or 147140 counting only the distinct ones).

The product of its digits is 115248000, while the sum is 63.

The spelling of 675525728727 in words is "six hundred seventy-five billion, five hundred twenty-five million, seven hundred twenty-eight thousand, seven hundred twenty-seven".