854234867531 has 16 divisors (see below), whose sum is σ = 875380118400. Its totient is φ = 833361205248.

The previous prime is 854234867527. The next prime is 854234867537. The reversal of 854234867531 is 135768432458.

It is a cyclic number.

It is not a de Polignac number, because 854234867531 - 2² = 854234867527 is a prime.

It is a super-2 number, since 2×854234867531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854234867537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10174235 + ... + 10257851.

It is an arithmetic number, because the mean of its divisors is an integer number (54711257400).

Almost surely, 2^854234867531 is an apocalyptic number.

854234867531 is a deficient number, since it is larger than the sum of its proper divisors (21145250869).

854234867531 is a wasteful number, since it uses less digits than its factorization.

854234867531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85238.

The product of its digits is 19353600, while the sum is 56.

The spelling of 854234867531 in words is "eight hundred fifty-four billion, two hundred thirty-four million, eight hundred sixty-seven thousand, five hundred thirty-one".