77716692233 has 4 divisors (see below), whose sum is σ = 77822718468. Its totient is φ = 77610666000.

The previous prime is 77716692223. The next prime is 77716692257. The reversal of 77716692233 is 33229661777.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71702379529 + 6014312704 = 267773^2 + 77552^2 .

It is a cyclic number.

It is not a de Polignac number, because 77716692233 - 2⁶ = 77716692169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77716692203) 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, 53012018 + ... + 53013483.

It is an arithmetic number, because the mean of its divisors is an integer number (19455679617).

Almost surely, 2^77716692233 is an apocalyptic number.

It is an amenable number.

77716692233 is a deficient number, since it is larger than the sum of its proper divisors (106026235).

77716692233 is a wasteful number, since it uses less digits than its factorization.

77716692233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106026234.

The product of its digits is 4000752, while the sum is 53.

The spelling of 77716692233 in words is "seventy-seven billion, seven hundred sixteen million, six hundred ninety-two thousand, two hundred thirty-three".