80078657943 has 16 divisors (see below), whose sum is σ = 107195006336. Its totient is φ = 53174409120.

The previous prime is 80078657929. The next prime is 80078657977. The reversal of 80078657943 is 34975687008.

It is a de Polignac number, because none of the positive numbers 2^k-80078657943 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 (80078657993) 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 15 ways as a sum of consecutive naturals, for example, 835188 + ... + 926118.

It is an arithmetic number, because the mean of its divisors is an integer number (6699687896).

Almost surely, 2^80078657943 is an apocalyptic number.

80078657943 is a deficient number, since it is larger than the sum of its proper divisors (27116348393).

80078657943 is a wasteful number, since it uses less digits than its factorization.

80078657943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92094.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 80078657943 in words is "eighty billion, seventy-eight million, six hundred fifty-seven thousand, nine hundred forty-three".