83779592725 has 12 divisors (see below), whose sum is σ = 104806049796. Its totient is φ = 66430542080.

The previous prime is 83779592719. The next prime is 83779592801. The reversal of 83779592725 is 52729597738.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 21731771889 + 62047820836 = 147417^2 + 249094^2 .

It is not a de Polignac number, because 83779592725 - 2⁷ = 83779592597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14825422 + ... + 14831071.

It is an arithmetic number, because the mean of its divisors is an integer number (8733837483).

Almost surely, 2^83779592725 is an apocalyptic number.

It is an amenable number.

83779592725 is a deficient number, since it is larger than the sum of its proper divisors (21026457071).

83779592725 is a wasteful number, since it uses less digits than its factorization.

83779592725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29656616 (or 29656611 counting only the distinct ones).

The product of its digits is 66679200, while the sum is 64.

The spelling of 83779592725 in words is "eighty-three billion, seven hundred seventy-nine million, five hundred ninety-two thousand, seven hundred twenty-five".