80822279757 has 4 divisors (see below), whose sum is σ = 107763039680. Its totient is φ = 53881519836.

The previous prime is 80822279753. The next prime is 80822279771. The reversal of 80822279757 is 75797222808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80822279757 - 2² = 80822279753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80822279697 and 80822279706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80822279753) 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, 13470379957 + ... + 13470379962.

It is an arithmetic number, because the mean of its divisors is an integer number (26940759920).

Almost surely, 2^80822279757 is an apocalyptic number.

It is an amenable number.

80822279757 is a deficient number, since it is larger than the sum of its proper divisors (26940759923).

80822279757 is a wasteful number, since it uses less digits than its factorization.

80822279757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26940759922.

The product of its (nonzero) digits is 7902720, while the sum is 57.

The spelling of 80822279757 in words is "eighty billion, eight hundred twenty-two million, two hundred seventy-nine thousand, seven hundred fifty-seven".