212569774239117 has 16 divisors (see below), whose sum is σ = 286616386293120. Its totient is φ = 140118233114112.

The previous prime is 212569774239071. The next prime is 212569774239131. The reversal of 212569774239117 is 711932477965212.

It is not a de Polignac number, because 212569774239117 - 2³⁵ = 212535414500749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212569774239157) 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, 6528453 + ... + 21627765.

It is an arithmetic number, because the mean of its divisors is an integer number (17913524143320).

Almost surely, 2^{212569774239117} is an apocalyptic number.

It is an amenable number.

212569774239117 is a deficient number, since it is larger than the sum of its proper divisors (74046612054003).

212569774239117 is a wasteful number, since it uses less digits than its factorization.

212569774239117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15152132.

The product of its digits is 80015040, while the sum is 66.

The spelling of 212569774239117 in words is "two hundred twelve trillion, five hundred sixty-nine billion, seven hundred seventy-four million, two hundred thirty-nine thousand, one hundred seventeen".