84859981403 has 4 divisors (see below), whose sum is σ = 85022860968. Its totient is φ = 84697101840.

The previous prime is 84859981399. The next prime is 84859981433. The reversal of 84859981403 is 30418995848.

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 84859981403 - 2² = 84859981399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84859981433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81439001 + ... + 81440042.

It is an arithmetic number, because the mean of its divisors is an integer number (21255715242).

Almost surely, 2^84859981403 is an apocalyptic number.

84859981403 is a deficient number, since it is larger than the sum of its proper divisors (162879565).

84859981403 is a wasteful number, since it uses less digits than its factorization.

84859981403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162879564.

The product of its (nonzero) digits is 9953280, while the sum is 59.

The spelling of 84859981403 in words is "eighty-four billion, eight hundred fifty-nine million, nine hundred eighty-one thousand, four hundred three".