83077685825 has 6 divisors (see below), whose sum is σ = 103016330454. Its totient is φ = 66462148640.

The previous prime is 83077685807. The next prime is 83077685837. The reversal of 83077685825 is 52858677038.

It is a Cunningham number, because it is equal to 288232²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 83077685824 = 1^2 + 288232^2 .

It is not a de Polignac number, because 83077685825 - 2⁸ = 83077685569 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 (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1661553692 + ... + 1661553741.

It is an arithmetic number, because the mean of its divisors is an integer number (17169388409).

Almost surely, 2^83077685825 is an apocalyptic number.

It is an amenable number.

83077685825 is a deficient number, since it is larger than the sum of its proper divisors (19938644629).

83077685825 is a wasteful number, since it uses less digits than its factorization.

83077685825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323107443 (or 3323107438 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 59.

The spelling of 83077685825 in words is "eighty-three billion, seventy-seven million, six hundred eighty-five thousand, eight hundred twenty-five".