86802681493 has 24 divisors (see below), whose sum is σ = 98052331608. Its totient is φ = 76739520000.

The previous prime is 86802681481. The next prime is 86802681527. The reversal of 86802681493 is 39418620868.

It can be written as a sum of positive squares in 4 ways, for example, as 141919569 + 86660761924 = 11913^2 + 294382^2 .

It is not a de Polignac number, because 86802681493 - 2¹³ = 86802673301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86802681443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1524843 + ... + 1580743.

It is an arithmetic number, because the mean of its divisors is an integer number (4085513817).

Almost surely, 2^86802681493 is an apocalyptic number.

It is an amenable number.

86802681493 is a deficient number, since it is larger than the sum of its proper divisors (11249650115).

86802681493 is a wasteful number, since it uses less digits than its factorization.

86802681493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56277 (or 56266 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 86802681493 in words is "eighty-six billion, eight hundred two million, six hundred eighty-one thousand, four hundred ninety-three".