83916976177 has 4 divisors (see below), whose sum is σ = 83917642356. Its totient is φ = 83916310000.

The previous prime is 83916976151. The next prime is 83916976211. The reversal of 83916976177 is 77167961938.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17268325281 + 66648650896 = 131409^2 + 258164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83916976177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83916976277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80074 + ... + 417427.

It is an arithmetic number, because the mean of its divisors is an integer number (20979410589).

Almost surely, 2^83916976177 is an apocalyptic number.

It is an amenable number.

83916976177 is a deficient number, since it is larger than the sum of its proper divisors (666179).

83916976177 is a wasteful number, since it uses less digits than its factorization.

83916976177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666178.

The product of its digits is 24004512, while the sum is 64.

The spelling of 83916976177 in words is "eighty-three billion, nine hundred sixteen million, nine hundred seventy-six thousand, one hundred seventy-seven".