83987270344 has 16 divisors (see below), whose sum is σ = 158920868700. Its totient is φ = 41608372032.

The previous prime is 83987270333. The next prime is 83987270401. The reversal of 83987270344 is 44307278938.

It can be written as a sum of positive squares in 2 ways, for example, as 78995847844 + 4991422500 = 281062^2 + 70650^2 .

It is a super-2 number, since 2×83987270344² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48156967 + ... + 48158710.

Almost surely, 2^83987270344 is an apocalyptic number.

It is an amenable number.

83987270344 is a deficient number, since it is larger than the sum of its proper divisors (74933598356).

83987270344 is a wasteful number, since it uses less digits than its factorization.

83987270344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96315792 (or 96315788 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 83987270344 in words is "eighty-three billion, nine hundred eighty-seven million, two hundred seventy thousand, three hundred forty-four".