86015715249 has 4 divisors (see below), whose sum is σ = 114687620336. Its totient is φ = 57343810164.

The previous prime is 86015715229. The next prime is 86015715251. The reversal of 86015715249 is 94251751068.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 86015715249 - 2¹² = 86015711153 is a prime.

It is a super-2 number, since 2×86015715249² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86015715198 and 86015715207.

It is not an unprimeable number, because it can be changed into a prime (86015715229) 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, 14335952539 + ... + 14335952544.

It is an arithmetic number, because the mean of its divisors is an integer number (28671905084).

Almost surely, 2^86015715249 is an apocalyptic number.

It is an amenable number.

86015715249 is a deficient number, since it is larger than the sum of its proper divisors (28671905087).

86015715249 is a wasteful number, since it uses less digits than its factorization.

86015715249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28671905086.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 86015715249 in words is "eighty-six billion, fifteen million, seven hundred fifteen thousand, two hundred forty-nine".