80878696940123 has 2 divisors, whose sum is σ = 80878696940124. Its totient is φ = 80878696940122.

The previous prime is 80878696940101. The next prime is 80878696940159. The reversal of 80878696940123 is 32104969687808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80878696940123 - 2¹² = 80878696936027 is a prime.

It is not a weakly prime, because it can be changed into another prime (80878696940183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40439348470061 + 40439348470062.

It is an arithmetic number, because the mean of its divisors is an integer number (40439348470062).

Almost surely, 2^{80878696940123} is an apocalyptic number.

80878696940123 is a deficient number, since it is larger than the sum of its proper divisors (1).

80878696940123 is an equidigital number, since it uses as much as digits as its factorization.

80878696940123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250822656, while the sum is 71.

The spelling of 80878696940123 in words is "eighty trillion, eight hundred seventy-eight billion, six hundred ninety-six million, nine hundred forty thousand, one hundred twenty-three".