80028077505 has 32 divisors (see below), whose sum is σ = 129063103488. Its totient is φ = 42342456000.

The previous prime is 80028077477. The next prime is 80028077527. The reversal of 80028077505 is 50577082008.

It is a happy number.

It is not a de Polignac number, because 80028077505 - 2¹⁴ = 80028061121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11100612 + ... + 11107818.

It is an arithmetic number, because the mean of its divisors is an integer number (4033221984).

Almost surely, 2^80028077505 is an apocalyptic number.

It is an amenable number.

80028077505 is a deficient number, since it is larger than the sum of its proper divisors (49035025983).

80028077505 is a wasteful number, since it uses less digits than its factorization.

80028077505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12997.

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 80028077505 in words is "eighty billion, twenty-eight million, seventy-seven thousand, five hundred five".