83864846838 has 16 divisors (see below), whose sum is σ = 170572570560. Its totient is φ = 27481136136.

The previous prime is 83864846831. The next prime is 83864846861.

83864846838 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×83864846838² (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 (83864846831) 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, 118452820 + ... + 118453527.

It is an arithmetic number, because the mean of its divisors is an integer number (10660785660).

Almost surely, 2^83864846838 is an apocalyptic number.

83864846838 is an abundant number, since it is smaller than the sum of its proper divisors (86707723722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83864846838 is a wasteful number, since it uses less digits than its factorization.

83864846838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236906411.

The product of its digits is 169869312, while the sum is 66.

The spelling of 83864846838 in words is "eighty-three billion, eight hundred sixty-four million, eight hundred forty-six thousand, eight hundred thirty-eight".