86642749244 has 12 divisors (see below), whose sum is σ = 152818708224. Its totient is φ = 42980261184.

The previous prime is 86642749217. The next prime is 86642749283. The reversal of 86642749244 is 44294724668.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 86642749244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85277789 + ... + 85278804.

It is an arithmetic number, because the mean of its divisors is an integer number (12734892352).

Almost surely, 2^86642749244 is an apocalyptic number.

It is an amenable number.

86642749244 is a deficient number, since it is larger than the sum of its proper divisors (66175958980).

86642749244 is a wasteful number, since it uses less digits than its factorization.

86642749244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170556724 (or 170556722 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 56.

The spelling of 86642749244 in words is "eighty-six billion, six hundred forty-two million, seven hundred forty-nine thousand, two hundred forty-four".