82607988385 has 48 divisors (see below), whose sum is σ = 110937940848. Its totient is φ = 58985472000.

The previous prime is 82607988373. The next prime is 82607988401. The reversal of 82607988385 is 58388970628.

It can be written as a sum of positive squares in 24 ways, for example, as 68492647521 + 14115340864 = 261711^2 + 118808^2 .

It is not a de Polignac number, because 82607988385 - 2¹³ = 82607980193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3904335 + ... + 3925435.

It is an arithmetic number, because the mean of its divisors is an integer number (2311207101).

Almost surely, 2^82607988385 is an apocalyptic number.

It is an amenable number.

82607988385 is a deficient number, since it is larger than the sum of its proper divisors (28329952463).

82607988385 is a wasteful number, since it uses less digits than its factorization.

82607988385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21286 (or 21273 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 82607988385 in words is "eighty-two billion, six hundred seven million, nine hundred eighty-eight thousand, three hundred eighty-five".