8047779623817 has 16 divisors (see below), whose sum is σ = 11371966162560. Its totient is φ = 5044967246592.

The previous prime is 8047779623797. The next prime is 8047779623831. The reversal of 8047779623817 is 7183269777408.

It is not a de Polignac number, because 8047779623817 - 2¹⁴ = 8047779607433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8047779623717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72130717 + ... + 72242202.

It is an arithmetic number, because the mean of its divisors is an integer number (710747885160).

Almost surely, 2^{8047779623817} is an apocalyptic number.

It is an amenable number.

8047779623817 is a deficient number, since it is larger than the sum of its proper divisors (3324186538743).

8047779623817 is a wasteful number, since it uses less digits than its factorization.

8047779623817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144374032.

The product of its (nonzero) digits is 199148544, while the sum is 69.

The spelling of 8047779623817 in words is "eight trillion, forty-seven billion, seven hundred seventy-nine million, six hundred twenty-three thousand, eight hundred seventeen".