84210875854 has 16 divisors (see below), whose sum is σ = 146394763776. Its totient is φ = 35582059800.

The previous prime is 84210875851. The next prime is 84210875893. The reversal of 84210875854 is 45857801248.

It is a super-2 number, since 2×84210875854² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84210875851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42358602 + ... + 42360589.

It is an arithmetic number, because the mean of its divisors is an integer number (9149672736).

Almost surely, 2^84210875854 is an apocalyptic number.

84210875854 is a deficient number, since it is larger than the sum of its proper divisors (62183887922).

84210875854 is a wasteful number, since it uses less digits than its factorization.

84210875854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84719271.

The product of its (nonzero) digits is 2867200, while the sum is 52.

The spelling of 84210875854 in words is "eighty-four billion, two hundred ten million, eight hundred seventy-five thousand, eight hundred fifty-four".