677588243825 has 6 divisors (see below), whose sum is σ = 840209422374. Its totient is φ = 542070595040.

The previous prime is 677588243807. The next prime is 677588243837. The reversal of 677588243825 is 528342885776.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 31865106064 + 645723137761 = 178508^2 + 803569^2 .

It is not a de Polignac number, because 677588243825 - 2¹⁰ = 677588242801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 13551764852 + ... + 13551764901.

It is an arithmetic number, because the mean of its divisors is an integer number (140034903729).

Almost surely, 2^677588243825 is an apocalyptic number.

It is an amenable number.

677588243825 is a deficient number, since it is larger than the sum of its proper divisors (162621178549).

677588243825 is a wasteful number, since it uses less digits than its factorization.

677588243825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27103529763 (or 27103529758 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 65.

The spelling of 677588243825 in words is "six hundred seventy-seven billion, five hundred eighty-eight million, two hundred forty-three thousand, eight hundred twenty-five".