80769513 has 16 divisors (see below), whose sum is σ = 123667200. Its totient is φ = 46374480.

The previous prime is 80769511. The next prime is 80769527. The reversal of 80769513 is 31596708.

It is not a de Polignac number, because 80769513 - 2¹ = 80769511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80769511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63783 + ... + 65036.

It is an arithmetic number, because the mean of its divisors is an integer number (7729200).

Almost surely, 2^80769513 is an apocalyptic number.

It is an amenable number.

80769513 is a deficient number, since it is larger than the sum of its proper divisors (42897687).

80769513 is a wasteful number, since it uses less digits than its factorization.

80769513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128852.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 80769513 is about 8987.1860445859. The cubic root of 80769513 is about 432.2640864276.

It can be divided in two parts, 807695 and 13, that added together give a palindrome (807708).

The spelling of 80769513 in words is "eighty million, seven hundred sixty-nine thousand, five hundred thirteen".