80556627739 has 16 divisors (see below), whose sum is σ = 94049856000. Its totient is φ = 68970432552.

The previous prime is 80556627727. The next prime is 80556627757. The reversal of 80556627739 is 93772665508.

It is not a de Polignac number, because 80556627739 - 2¹⁵ = 80556594971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80556627719) 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 15 ways as a sum of consecutive naturals, for example, 171852 + ... + 436630.

It is an arithmetic number, because the mean of its divisors is an integer number (5878116000).

Almost surely, 2^80556627739 is an apocalyptic number.

80556627739 is a deficient number, since it is larger than the sum of its proper divisors (13493228261).

80556627739 is an equidigital number, since it uses as much as digits as its factorization.

80556627739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265687 (or 265673 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 80556627739 in words is "eighty billion, five hundred fifty-six million, six hundred twenty-seven thousand, seven hundred thirty-nine".