82570135738 has 8 divisors (see below), whose sum is σ = 124126222932. Its totient is φ = 41194728096.

The previous prime is 82570135733. The next prime is 82570135801. The reversal of 82570135738 is 83753107528.

It can be written as a sum of positive squares in 2 ways, for example, as 81634204089 + 935931649 = 285717^2 + 30593^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 82570135691 and 82570135700.

It is not an unprimeable number, because it can be changed into a prime (82570135733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45168745 + ... + 45170572.

Almost surely, 2^82570135738 is an apocalyptic number.

82570135738 is a deficient number, since it is larger than the sum of its proper divisors (41556087194).

82570135738 is a wasteful number, since it uses less digits than its factorization.

82570135738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90339776.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 82570135738 in words is "eighty-two billion, five hundred seventy million, one hundred thirty-five thousand, seven hundred thirty-eight".