86187321633 has 32 divisors (see below), whose sum is σ = 140492185344. Its totient is φ = 45874962432.

The previous prime is 86187321629. The next prime is 86187321721. The reversal of 86187321633 is 33612378168.

It is not a de Polignac number, because 86187321633 - 2² = 86187321629 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86187322633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1209810 + ... + 1279067.

It is an arithmetic number, because the mean of its divisors is an integer number (4390380792).

Almost surely, 2^86187321633 is an apocalyptic number.

It is an amenable number.

86187321633 is a deficient number, since it is larger than the sum of its proper divisors (54304863711).

86187321633 is a wasteful number, since it uses less digits than its factorization.

86187321633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489001.

The product of its digits is 870912, while the sum is 48.

The spelling of 86187321633 in words is "eighty-six billion, one hundred eighty-seven million, three hundred twenty-one thousand, six hundred thirty-three".