80393931878401 has 4 divisors (see below), whose sum is σ = 80393951656404. Its totient is φ = 80393912100400.

The previous prime is 80393931878383. The next prime is 80393931878461. The reversal of 80393931878401 is 10487813939308.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28775167334001 + 51618764544400 = 5364249^2 + 7184620^2 .

It is a cyclic number.

It is not a de Polignac number, because 80393931878401 - 2⁵ = 80393931878369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80393931878461) 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 in 3 ways as a sum of consecutive naturals, for example, 1312210 + ... + 12747931.

It is an arithmetic number, because the mean of its divisors is an integer number (20098487914101).

Almost surely, 2^{80393931878401} is an apocalyptic number.

It is an amenable number.

80393931878401 is a deficient number, since it is larger than the sum of its proper divisors (19778003).

80393931878401 is a wasteful number, since it uses less digits than its factorization.

80393931878401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19778002.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 80393931878401 in words is "eighty trillion, three hundred ninety-three billion, nine hundred thirty-one million, eight hundred seventy-eight thousand, four hundred one".