82277774473 has 8 divisors (see below), whose sum is σ = 86280899400. Its totient is φ = 78352380288.

The previous prime is 82277774459. The next prime is 82277774519. The reversal of 82277774473 is 37447777228.

It can be written as a sum of positive squares in 4 ways, for example, as 2895838969 + 79381935504 = 53813^2 + 281748^2 .

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 82277774473 - 2²⁵ = 82244220041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82277774413) 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, 19430518 + ... + 19434751.

It is an arithmetic number, because the mean of its divisors is an integer number (10785112425).

Almost surely, 2^82277774473 is an apocalyptic number.

It is an amenable number.

82277774473 is a deficient number, since it is larger than the sum of its proper divisors (4003124927).

82277774473 is a wasteful number, since it uses less digits than its factorization.

82277774473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38865371.

The product of its digits is 25815552, while the sum is 58.

The spelling of 82277774473 in words is "eighty-two billion, two hundred seventy-seven million, seven hundred seventy-four thousand, four hundred seventy-three".