77010111011111 has 4 divisors (see below), whose sum is σ = 77016053620800. Its totient is φ = 77004168401424.

The previous prime is 77010111011107. The next prime is 77010111011117. The reversal of 77010111011111 is 11111011101077.

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 77010111011111 - 2² = 77010111011107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77010111011117) 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, 2971285406 + ... + 2971311323.

It is an arithmetic number, because the mean of its divisors is an integer number (19254013405200).

Almost surely, 2^{77010111011111} is an apocalyptic number.

77010111011111 is a deficient number, since it is larger than the sum of its proper divisors (5942609689).

77010111011111 is a wasteful number, since it uses less digits than its factorization.

77010111011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942609688.

The product of its (nonzero) digits is 49, while the sum is 23.

Adding to 77010111011111 its reverse (11111011101077), we get a palindrome (88121122112188).

The spelling of 77010111011111 in words is "seventy-seven trillion, ten billion, one hundred eleven million, eleven thousand, one hundred eleven".