82008769725 has 36 divisors (see below), whose sum is σ = 148186747956. Its totient is φ = 43350935040.

The previous prime is 82008769723. The next prime is 82008769751. The reversal of 82008769725 is 52796780028.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2650499289 + 79358270436 = 51483^2 + 281706^2 .

It is not a de Polignac number, because 82008769725 - 2¹ = 82008769723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82008769723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1587334 + ... + 1638183.

Almost surely, 2^82008769725 is an apocalyptic number.

It is an amenable number.

82008769725 is a deficient number, since it is larger than the sum of its proper divisors (66177978231).

82008769725 is a wasteful number, since it uses less digits than its factorization.

82008769725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225646 (or 3225638 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 82008769725 in words is "eighty-two billion, eight million, seven hundred sixty-nine thousand, seven hundred twenty-five".