86782773053 has 4 divisors (see below), whose sum is σ = 86789492028. Its totient is φ = 86776054080.

The previous prime is 86782772939. The next prime is 86782773067. The reversal of 86782773053 is 35037728768.

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 33497052484 + 53285720569 = 183022^2 + 230837^2 .

It is a cyclic number.

It is not a de Polignac number, because 86782773053 - 2¹⁸ = 86782510909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86782773053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86782773073) 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, 3340076 + ... + 3365957.

It is an arithmetic number, because the mean of its divisors is an integer number (21697373007).

Almost surely, 2^86782773053 is an apocalyptic number.

It is an amenable number.

86782773053 is a deficient number, since it is larger than the sum of its proper divisors (6718975).

86782773053 is a wasteful number, since it uses less digits than its factorization.

86782773053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718974.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 86782773053 in words is "eighty-six billion, seven hundred eighty-two million, seven hundred seventy-three thousand, fifty-three".