77680011 has 8 divisors (see below), whose sum is σ = 104319040. Its totient is φ = 51413832.

The previous prime is 77680003. The next prime is 77680051. The reversal of 77680011 is 11008677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77680011 - 2³ = 77680003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77680051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92725 + ... + 93558.

It is an arithmetic number, because the mean of its divisors is an integer number (13039880).

Almost surely, 2^77680011 is an apocalyptic number.

77680011 is a deficient number, since it is larger than the sum of its proper divisors (26639029).

77680011 is a wasteful number, since it uses less digits than its factorization.

77680011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186425.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 77680011 is about 8813.6264386460. The cubic root of 77680011 is about 426.6807922434.

Adding to 77680011 its reverse (11008677), we get a palindrome (88688688).

The spelling of 77680011 in words is "seventy-seven million, six hundred eighty thousand, eleven".