84028106031 has 4 divisors (see below), whose sum is σ = 112037474712. Its totient is φ = 56018737352.

The previous prime is 84028106023. The next prime is 84028106051. The reversal of 84028106031 is 13060182048.

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 84028106031 - 2³ = 84028106023 is a prime.

It is a super-2 number, since 2×84028106031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84028105983 and 84028106001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84028106051) 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 3 ways as a sum of consecutive naturals, for example, 14004684336 + ... + 14004684341.

It is an arithmetic number, because the mean of its divisors is an integer number (28009368678).

Almost surely, 2^84028106031 is an apocalyptic number.

84028106031 is a deficient number, since it is larger than the sum of its proper divisors (28009368681).

84028106031 is a wasteful number, since it uses less digits than its factorization.

84028106031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28009368680.

The product of its (nonzero) digits is 9216, while the sum is 33.

Adding to 84028106031 its reverse (13060182048), we get a palindrome (97088288079).

The spelling of 84028106031 in words is "eighty-four billion, twenty-eight million, one hundred six thousand, thirty-one".