83421086431 has 8 divisors (see below), whose sum is σ = 84183598080. Its totient is φ = 82661869272.

The previous prime is 83421086407. The next prime is 83421086453. The reversal of 83421086431 is 13468012438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83421086431 - 2¹³ = 83421078239 is a prime.

It is a super-2 number, since 2×83421086431² (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 (83421086491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772735 + ... + 874048.

It is an arithmetic number, because the mean of its divisors is an integer number (10522949760).

Almost surely, 2^83421086431 is an apocalyptic number.

83421086431 is a deficient number, since it is larger than the sum of its proper divisors (762511649).

83421086431 is a wasteful number, since it uses less digits than its factorization.

83421086431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647245.

The product of its (nonzero) digits is 110592, while the sum is 40.

Adding to 83421086431 its reverse (13468012438), we get a palindrome (96889098869).

The spelling of 83421086431 in words is "eighty-three billion, four hundred twenty-one million, eighty-six thousand, four hundred thirty-one".