76766042039 has 4 divisors (see below), whose sum is σ = 77101265160. Its totient is φ = 76430818920.

The previous prime is 76766042033. The next prime is 76766042077. The reversal of 76766042039 is 93024066767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93024066767 = 118259 ⋅786613.

It is a cyclic number.

It is not a de Polignac number, because 76766042039 - 2²⁰ = 76764993463 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 (76766042033) 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, 167611217 + ... + 167611674.

It is an arithmetic number, because the mean of its divisors is an integer number (19275316290).

Almost surely, 2^76766042039 is an apocalyptic number.

76766042039 is a deficient number, since it is larger than the sum of its proper divisors (335223121).

76766042039 is a wasteful number, since it uses less digits than its factorization.

76766042039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335223120.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The spelling of 76766042039 in words is "seventy-six billion, seven hundred sixty-six million, forty-two thousand, thirty-nine".