80936657143 has 4 divisors (see below), whose sum is σ = 80941495320. Its totient is φ = 80931818968.

The previous prime is 80936657099. The next prime is 80936657189. The reversal of 80936657143 is 34175663908.

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 80936657143 - 2²⁹ = 80399786231 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 (80939657143) 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, 2393908 + ... + 2427481.

It is an arithmetic number, because the mean of its divisors is an integer number (20235373830).

Almost surely, 2^80936657143 is an apocalyptic number.

80936657143 is a deficient number, since it is larger than the sum of its proper divisors (4838177).

80936657143 is a wasteful number, since it uses less digits than its factorization.

80936657143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838176.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 80936657143 in words is "eighty billion, nine hundred thirty-six million, six hundred fifty-seven thousand, one hundred forty-three".