83387157943 has 4 divisors (see below), whose sum is σ = 83597201560. Its totient is φ = 83177114328.

The previous prime is 83387157907. The next prime is 83387157947. The reversal of 83387157943 is 34975178338.

It is a happy number.

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 83387157943 - 2⁹ = 83387157431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83387157947) 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, 105021213 + ... + 105022006.

It is an arithmetic number, because the mean of its divisors is an integer number (20899300390).

Almost surely, 2^83387157943 is an apocalyptic number.

83387157943 is a deficient number, since it is larger than the sum of its proper divisors (210043617).

83387157943 is a wasteful number, since it uses less digits than its factorization.

83387157943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210043616.

The product of its digits is 15240960, while the sum is 58.

The spelling of 83387157943 in words is "eighty-three billion, three hundred eighty-seven million, one hundred fifty-seven thousand, nine hundred forty-three".