80607780607 has 16 divisors (see below), whose sum is σ = 83738350080. Its totient is φ = 77542974432.

The previous prime is 80607780551. The next prime is 80607780619. The reversal of 80607780607 is 70608770608.

It is a cyclic number.

It is not a de Polignac number, because 80607780607 - 2¹⁵ = 80607747839 is a prime.

It is a super-2 number, since 2×80607780607² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80607780677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731238 + ... + 834220.

It is an arithmetic number, because the mean of its divisors is an integer number (5233646880).

Almost surely, 2^80607780607 is an apocalyptic number.

80607780607 is a deficient number, since it is larger than the sum of its proper divisors (3130569473).

80607780607 is a wasteful number, since it uses less digits than its factorization.

80607780607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103302.

The product of its (nonzero) digits is 790272, while the sum is 49.

Subtracting from 80607780607 its reverse (70608770608), we obtain a palindrome (9999009999).

The spelling of 80607780607 in words is "eighty billion, six hundred seven million, seven hundred eighty thousand, six hundred seven".