10217075779 has 4 divisors (see below), whose sum is σ = 10218977784. Its totient is φ = 10215173776.

The previous prime is 10217075773. The next prime is 10217075783. The reversal of 10217075779 is 97757071201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10217075779 - 2⁵ = 10217075747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10217075773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942922 + ... + 953695.

It is an arithmetic number, because the mean of its divisors is an integer number (2554744446).

Almost surely, 2^10217075779 is an apocalyptic number.

10217075779 is a deficient number, since it is larger than the sum of its proper divisors (1902005).

10217075779 is an equidigital number, since it uses as much as digits as its factorization.

10217075779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902004.

The product of its (nonzero) digits is 216090, while the sum is 46.

The spelling of 10217075779 in words is "ten billion, two hundred seventeen million, seventy-five thousand, seven hundred seventy-nine".