80510457091 has 4 divisors (see below), whose sum is σ = 80511040072. Its totient is φ = 80509874112.

The previous prime is 80510457067. The next prime is 80510457107. The reversal of 80510457091 is 19075401508.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 80510457091 - 2⁷ = 80510456963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80510457061) 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, 45616 + ... + 403858.

It is an arithmetic number, because the mean of its divisors is an integer number (20127760018).

Almost surely, 2^80510457091 is an apocalyptic number.

80510457091 is a deficient number, since it is larger than the sum of its proper divisors (582981).

80510457091 is a wasteful number, since it uses less digits than its factorization.

80510457091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582980.

The product of its (nonzero) digits is 50400, while the sum is 40.

Adding to 80510457091 its reverse (19075401508), we get a palindrome (99585858599).

The spelling of 80510457091 in words is "eighty billion, five hundred ten million, four hundred fifty-seven thousand, ninety-one".