854531280431 has 4 divisors (see below), whose sum is σ = 899506611000. Its totient is φ = 809555949864.

The previous prime is 854531280401. The next prime is 854531280437. The reversal of 854531280431 is 134082135458.

854531280431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854531280431 is a prime.

It is a super-2 number, since 2×854531280431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854531280437) 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, 22487665256 + ... + 22487665293.

It is an arithmetic number, because the mean of its divisors is an integer number (224876652750).

Almost surely, 2^854531280431 is an apocalyptic number.

854531280431 is a deficient number, since it is larger than the sum of its proper divisors (44975330569).

854531280431 is a wasteful number, since it uses less digits than its factorization.

854531280431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44975330568.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 854531280431 in words is "eight hundred fifty-four billion, five hundred thirty-one million, two hundred eighty thousand, four hundred thirty-one".