83570061313 has 4 divisors (see below), whose sum is σ = 83837058628. Its totient is φ = 83303064000.

The previous prime is 83570061259. The next prime is 83570061319. The reversal of 83570061313 is 31316007538.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32124109824 + 51445951489 = 179232^2 + 226817^2 .

It is a cyclic number.

It is not a de Polignac number, because 83570061313 - 2¹³ = 83570053121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83570061319) 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, 133498188 + ... + 133498813.

It is an arithmetic number, because the mean of its divisors is an integer number (20959264657).

Almost surely, 2^83570061313 is an apocalyptic number.

It is an amenable number.

83570061313 is a deficient number, since it is larger than the sum of its proper divisors (266997315).

83570061313 is a wasteful number, since it uses less digits than its factorization.

83570061313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266997314.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 83570061313 in words is "eighty-three billion, five hundred seventy million, sixty-one thousand, three hundred thirteen".