86442217744 has 10 divisors (see below), whose sum is σ = 167481796910. Its totient is φ = 43221108864.

The previous prime is 86442217717. The next prime is 86442217759. The reversal of 86442217744 is 44771224468.

It can be written as a sum of positive squares in only one way, i.e., 44105040144 + 42337177600 = 210012^2 + 205760^2 .

It is a super-2 number, since 2×86442217744² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701319289 + ... + 2701319320.

It is an arithmetic number, because the mean of its divisors is an integer number (16748179691).

Almost surely, 2^86442217744 is an apocalyptic number.

It is an amenable number.

86442217744 is a deficient number, since it is larger than the sum of its proper divisors (81039579166).

86442217744 is a wasteful number, since it uses less digits than its factorization.

86442217744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402638617 (or 5402638611 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 49.

The spelling of 86442217744 in words is "eighty-six billion, four hundred forty-two million, two hundred seventeen thousand, seven hundred forty-four".