77682011 has 16 divisors (see below), whose sum is σ = 86887680. Its totient is φ = 68856480.

The previous prime is 77681999. The next prime is 77682041. The reversal of 77682011 is 11028677.

It is a de Polignac number, because none of the positive numbers 2^k-77682011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77682041) 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, 79850 + ... + 80816.

It is an arithmetic number, because the mean of its divisors is an integer number (5430480).

Almost surely, 2^77682011 is an apocalyptic number.

77682011 is a deficient number, since it is larger than the sum of its proper divisors (9205669).

77682011 is a wasteful number, since it uses less digits than its factorization.

77682011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 77682011 is about 8813.7398985902. The cubic root of 77682011 is about 426.6844540789.

It can be divided in two parts, 7768 and 2011, that added together give a palindrome (9779).

The spelling of 77682011 in words is "seventy-seven million, six hundred eighty-two thousand, eleven".