99776174398779 has 8 divisors (see below), whose sum is σ = 133051447918080. Its totient is φ = 66509175239336.

The previous prime is 99776174398753. The next prime is 99776174398811. The reversal of 99776174398779 is 97789347167799.

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 99776174398779 - 2⁹ = 99776174398267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99776174398692 and 99776174398701.

It is not an unprimeable number, because it can be changed into a prime (99776174398709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2068561827 + ... + 2068610060.

It is an arithmetic number, because the mean of its divisors is an integer number (16631430989760).

Almost surely, 2^{99776174398779} is an apocalyptic number.

99776174398779 is a deficient number, since it is larger than the sum of its proper divisors (33275273519301).

99776174398779 is a wasteful number, since it uses less digits than its factorization.

99776174398779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137179929.

The product of its digits is 63515938752, while the sum is 93.

The spelling of 99776174398779 in words is "ninety-nine trillion, seven hundred seventy-six billion, one hundred seventy-four million, three hundred ninety-eight thousand, seven hundred seventy-nine".