80455310391 has 4 divisors (see below), whose sum is σ = 107273747192. Its totient is φ = 53636873592.

The previous prime is 80455310381. The next prime is 80455310407. The reversal of 80455310391 is 19301355408.

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

It is not a de Polignac number, because 80455310391 - 2⁷ = 80455310263 is a prime.

It is a super-2 number, since 2×80455310391² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80455310381) 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, 13409218396 + ... + 13409218401.

It is an arithmetic number, because the mean of its divisors is an integer number (26818436798).

Almost surely, 2^80455310391 is an apocalyptic number.

80455310391 is a deficient number, since it is larger than the sum of its proper divisors (26818436801).

80455310391 is a wasteful number, since it uses less digits than its factorization.

80455310391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26818436800.

The product of its (nonzero) digits is 64800, while the sum is 39.

Adding to 80455310391 its reverse (19301355408), we get a palindrome (99756665799).

The spelling of 80455310391 in words is "eighty billion, four hundred fifty-five million, three hundred ten thousand, three hundred ninety-one".