84891875137 has 4 divisors (see below), whose sum is σ = 85033598400. Its totient is φ = 84750151876.

The previous prime is 84891875083. The next prime is 84891875143. The reversal of 84891875137 is 73157819848.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84891875137 - 2¹⁵ = 84891842369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84891875147) 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, 70860733 + ... + 70861930.

It is an arithmetic number, because the mean of its divisors is an integer number (21258399600).

Almost surely, 2^84891875137 is an apocalyptic number.

It is an amenable number.

84891875137 is a deficient number, since it is larger than the sum of its proper divisors (141723263).

84891875137 is a wasteful number, since it uses less digits than its factorization.

84891875137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141723262.

The product of its digits is 13547520, while the sum is 61.

The spelling of 84891875137 in words is "eighty-four billion, eight hundred ninety-one million, eight hundred seventy-five thousand, one hundred thirty-seven".