10213117779 has 12 divisors (see below), whose sum is σ = 13806053016. Its totient is φ = 6714491328.

The previous prime is 10213117763. The next prime is 10213117787. The reversal of 10213117779 is 97771131201.

It is not a de Polignac number, because 10213117779 - 2⁴ = 10213117763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213117279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1492137 + ... + 1498965.

It is an arithmetic number, because the mean of its divisors is an integer number (1150504418).

Almost surely, 2^10213117779 is an apocalyptic number.

10213117779 is a deficient number, since it is larger than the sum of its proper divisors (3592935237).

10213117779 is an frugal number, since it uses more digits than its factorization.

10213117779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13734 (or 6905 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 39.

The spelling of 10213117779 in words is "ten billion, two hundred thirteen million, one hundred seventeen thousand, seven hundred seventy-nine".