80777535107 has 4 divisors (see below), whose sum is σ = 82101757056. Its totient is φ = 79453313160.

The previous prime is 80777535049. The next prime is 80777535133. The reversal of 80777535107 is 70153577708.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80777535107 - 2¹² = 80777531011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80777535197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662110883 + ... + 662111004.

It is an arithmetic number, because the mean of its divisors is an integer number (20525439264).

Almost surely, 2^80777535107 is an apocalyptic number.

80777535107 is a deficient number, since it is larger than the sum of its proper divisors (1324221949).

80777535107 is a wasteful number, since it uses less digits than its factorization.

80777535107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324221948.

The product of its (nonzero) digits is 1440600, while the sum is 50.

The spelling of 80777535107 in words is "eighty billion, seven hundred seventy-seven million, five hundred thirty-five thousand, one hundred seven".