82783475197 has 8 divisors (see below), whose sum is σ = 85749463800. Its totient is φ = 79824912384.

The previous prime is 82783475153. The next prime is 82783475221. The reversal of 82783475197 is 79157438728.

It can be written as a sum of positive squares in 4 ways, for example, as 19933486596 + 62849988601 = 141186^2 + 250699^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 82783475197 - 2⁷ = 82783475069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82783473197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833748 + ... + 1878349.

It is an arithmetic number, because the mean of its divisors is an integer number (10718682975).

Almost surely, 2^82783475197 is an apocalyptic number.

It is an amenable number.

82783475197 is a deficient number, since it is larger than the sum of its proper divisors (2965988603).

82783475197 is a wasteful number, since it uses less digits than its factorization.

82783475197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712895.

The product of its digits is 23708160, while the sum is 61.

The spelling of 82783475197 in words is "eighty-two billion, seven hundred eighty-three million, four hundred seventy-five thousand, one hundred ninety-seven".