77123192670665 has 8 divisors (see below), whose sum is σ = 93412764207360. Its totient is φ = 61121932134832.

The previous prime is 77123192670607. The next prime is 77123192670673. The reversal of 77123192670665 is 56607629132177.

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

It is a cyclic number.

It is not a de Polignac number, because 77123192670665 - 2²² = 77123188476361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77123192670598 and 77123192670607.

It is an unprimeable number.

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, 72077749625 + ... + 72077750694.

It is an arithmetic number, because the mean of its divisors is an integer number (11676595525920).

Almost surely, 2^{77123192670665} is an apocalyptic number.

It is an amenable number.

77123192670665 is a deficient number, since it is larger than the sum of its proper divisors (16289571536695).

77123192670665 is a wasteful number, since it uses less digits than its factorization.

77123192670665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144155500431.

The product of its (nonzero) digits is 40007520, while the sum is 62.

The spelling of 77123192670665 in words is "seventy-seven trillion, one hundred twenty-three billion, one hundred ninety-two million, six hundred seventy thousand, six hundred sixty-five".