86537152242 has 18 divisors (see below), whose sum is σ = 187499867373. Its totient is φ = 28845301392.

The previous prime is 86537152241. The next prime is 86537152267. The reversal of 86537152242 is 24225173568.

86537152242 is a `hidden beast` number, since 8 + 6 + 53 + 71 + 522 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 86518927881 + 18224361 = 294141^2 + 4269^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=208011.

It is not an unprimeable number, because it can be changed into a prime (86537152241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1213398 + ... + 1282734.

Almost surely, 2^86537152242 is an apocalyptic number.

86537152242 is an abundant number, since it is smaller than the sum of its proper divisors (100962715131).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86537152242 is an frugal number, since it uses more digits than its factorization.

86537152242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138682 (or 69342 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The spelling of 86537152242 in words is "eighty-six billion, five hundred thirty-seven million, one hundred fifty-two thousand, two hundred forty-two".