86535466642 has 4 divisors (see below), whose sum is σ = 129803199966. Its totient is φ = 43267733320.

The previous prime is 86535466637. The next prime is 86535466669. The reversal of 86535466642 is 24666453568.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60093129321 + 26442337321 = 245139^2 + 162611^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21633866659 + ... + 21633866662.

Almost surely, 2^86535466642 is an apocalyptic number.

86535466642 is a deficient number, since it is larger than the sum of its proper divisors (43267733324).

86535466642 is a wasteful number, since it uses less digits than its factorization.

86535466642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43267733323.

The product of its digits is 24883200, while the sum is 55.

The spelling of 86535466642 in words is "eighty-six billion, five hundred thirty-five million, four hundred sixty-six thousand, six hundred forty-two".