86279298440 has 16 divisors (see below), whose sum is σ = 194128421580. Its totient is φ = 34511719360.

The previous prime is 86279298407. The next prime is 86279298449. The reversal of 86279298440 is 4489297268.

It can be written as a sum of positive squares in 2 ways, for example, as 81909295204 + 4370003236 = 286198^2 + 66106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86279298440.

It is not an unprimeable number, because it can be changed into a prime (86279298449) 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, 1078491191 + ... + 1078491270.

Almost surely, 2^86279298440 is an apocalyptic number.

It is an amenable number.

86279298440 is an abundant number, since it is smaller than the sum of its proper divisors (107849123140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86279298440 is a wasteful number, since it uses less digits than its factorization.

86279298440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156982472 (or 2156982468 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 86279298440 in words is "eighty-six billion, two hundred seventy-nine million, two hundred ninety-eight thousand, four hundred forty".