80878940343 has 32 divisors (see below), whose sum is σ = 120966084800. Its totient is φ = 53404230528.

The previous prime is 80878940339. The next prime is 80878940357. The reversal of 80878940343 is 34304987808.

80878940343 is a `hidden beast` number, since 80 + 87 + 89 + 403 + 4 + 3 = 666.

It is not a de Polignac number, because 80878940343 - 2² = 80878940339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80878940343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80878940143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14938905 + ... + 14944317.

It is an arithmetic number, because the mean of its divisors is an integer number (3780190150).

Almost surely, 2^80878940343 is an apocalyptic number.

80878940343 is a deficient number, since it is larger than the sum of its proper divisors (40087144457).

80878940343 is a wasteful number, since it uses less digits than its factorization.

80878940343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608 (or 10602 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 80878940343 in words is "eighty billion, eight hundred seventy-eight million, nine hundred forty thousand, three hundred forty-three".