77663949119 has 8 divisors (see below), whose sum is σ = 80383680720. Its totient is φ = 74946995200.

The previous prime is 77663949109. The next prime is 77663949137. The reversal of 77663949119 is 91194936677.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77663949119 is a prime.

It is a super-2 number, since 2×77663949119² (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 (77663949109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637442 + ... + 749439.

It is an arithmetic number, because the mean of its divisors is an integer number (10047960090).

Almost surely, 2^77663949119 is an apocalyptic number.

77663949119 is a deficient number, since it is larger than the sum of its proper divisors (2719731601).

77663949119 is a wasteful number, since it uses less digits than its factorization.

77663949119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388841.

The product of its digits is 15431472, while the sum is 62.

The spelling of 77663949119 in words is "seventy-seven billion, six hundred sixty-three million, nine hundred forty-nine thousand, one hundred nineteen".