77619763966 has 8 divisors (see below), whose sum is σ = 116714316240. Its totient is φ = 38714991888.

The previous prime is 77619763919. The next prime is 77619764021. The reversal of 77619763966 is 66936791677.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47444026 + ... + 47445661.

It is an arithmetic number, because the mean of its divisors is an integer number (14589289530).

Almost surely, 2^77619763966 is an apocalyptic number.

77619763966 is a deficient number, since it is larger than the sum of its proper divisors (39094552274).

77619763966 is a wasteful number, since it uses less digits than its factorization.

77619763966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94890098.

The product of its digits is 108020304, while the sum is 67.

The spelling of 77619763966 in words is "seventy-seven billion, six hundred nineteen million, seven hundred sixty-three thousand, nine hundred sixty-six".