83525171187 has 4 divisors (see below), whose sum is σ = 111366894920. Its totient is φ = 55683447456.

The previous prime is 83525171173. The next prime is 83525171201. The reversal of 83525171187 is 78117152538.

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

It is an interprime number because it is at equal distance from previous prime (83525171173) and next prime (83525171201).

It is not a de Polignac number, because 83525171187 - 2⁶ = 83525171123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83525171167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13920861862 + ... + 13920861867.

It is an arithmetic number, because the mean of its divisors is an integer number (27841723730).

Almost surely, 2^83525171187 is an apocalyptic number.

83525171187 is a deficient number, since it is larger than the sum of its proper divisors (27841723733).

83525171187 is a wasteful number, since it uses less digits than its factorization.

83525171187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27841723732.

The product of its digits is 470400, while the sum is 48.

The spelling of 83525171187 in words is "eighty-three billion, five hundred twenty-five million, one hundred seventy-one thousand, one hundred eighty-seven".