77665307119 has 4 divisors (see below), whose sum is σ = 79471477096. Its totient is φ = 75859137144.

The previous prime is 77665307113. The next prime is 77665307129. The reversal of 77665307119 is 91170356677.

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 77665307119 - 2⁷ = 77665306991 is a prime.

It is a super-2 number, since 2×77665307119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77665307113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903084924 + ... + 903085009.

It is an arithmetic number, because the mean of its divisors is an integer number (19867869274).

Almost surely, 2^77665307119 is an apocalyptic number.

77665307119 is a deficient number, since it is larger than the sum of its proper divisors (1806169977).

77665307119 is a wasteful number, since it uses less digits than its factorization.

77665307119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806169976.

The product of its (nonzero) digits is 1666980, while the sum is 52.

The spelling of 77665307119 in words is "seventy-seven billion, six hundred sixty-five million, three hundred seven thousand, one hundred nineteen".