82853858431 has 4 divisors (see below), whose sum is σ = 84780692392. Its totient is φ = 80927024472.

The previous prime is 82853858419. The next prime is 82853858453. The reversal of 82853858431 is 13485835828.

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

It is a cyclic number.

It is not a de Polignac number, because 82853858431 - 2¹¹ = 82853856383 is a prime.

It is a super-2 number, since 2×82853858431² (a number of 23 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 (82853855431) 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, 963416916 + ... + 963417001.

It is an arithmetic number, because the mean of its divisors is an integer number (21195173098).

Almost surely, 2^82853858431 is an apocalyptic number.

82853858431 is a deficient number, since it is larger than the sum of its proper divisors (1926833961).

82853858431 is a wasteful number, since it uses less digits than its factorization.

82853858431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926833960.

The product of its digits is 7372800, while the sum is 55.

The spelling of 82853858431 in words is "eighty-two billion, eight hundred fifty-three million, eight hundred fifty-eight thousand, four hundred thirty-one".