77071083079 has 4 divisors (see below), whose sum is σ = 77753128176. Its totient is φ = 76389037984.

The previous prime is 77071083071. The next prime is 77071083083. The reversal of 77071083079 is 97038017077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97038017077 = 128393 ⋅755789.

It is a cyclic number.

It is not a de Polignac number, because 77071083079 - 2³ = 77071083071 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77071083071) 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, 341022379 + ... + 341022604.

It is an arithmetic number, because the mean of its divisors is an integer number (19438282044).

Almost surely, 2^77071083079 is an apocalyptic number.

77071083079 is a deficient number, since it is larger than the sum of its proper divisors (682045097).

77071083079 is a wasteful number, since it uses less digits than its factorization.

77071083079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682045096.

The product of its (nonzero) digits is 518616, while the sum is 49.

The spelling of 77071083079 in words is "seventy-seven billion, seventy-one million, eighty-three thousand, seventy-nine".