86387880413 has 4 divisors (see below), whose sum is σ = 86388720348. Its totient is φ = 86387040480.

The previous prime is 86387880407. The next prime is 86387880419. The reversal of 86387880413 is 31408878368.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (86387880407) and next prime (86387880419).

It can be written as a sum of positive squares in 2 ways, for example, as 48762355684 + 37625524729 = 220822^2 + 193973^2 .

It is a cyclic number.

It is not a de Polignac number, because 86387880413 - 2⁸ = 86387880157 is a prime.

It is a super-3 number, since 3×86387880413³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86387880419) 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, 239978 + ... + 479963.

It is an arithmetic number, because the mean of its divisors is an integer number (21597180087).

Almost surely, 2^86387880413 is an apocalyptic number.

It is an amenable number.

86387880413 is a deficient number, since it is larger than the sum of its proper divisors (839935).

86387880413 is a wasteful number, since it uses less digits than its factorization.

86387880413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839934.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 86387880413 in words is "eighty-six billion, three hundred eighty-seven million, eight hundred eighty thousand, four hundred thirteen".