212269329693 has 24 divisors (see below), whose sum is σ = 320152727232. Its totient is φ = 135271074048.

The previous prime is 212269329637. The next prime is 212269329721. The reversal of 212269329693 is 396923962212.

212269329693 is a `hidden beast` number, since 2 + 1 + 2 + 269 + 3 + 296 + 93 = 666.

It is not a de Polignac number, because 212269329693 - 2¹³ = 212269321501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212269324693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21396 + ... + 651917.

It is an arithmetic number, because the mean of its divisors is an integer number (13339696968).

Almost surely, 2^212269329693 is an apocalyptic number.

212269329693 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212269329693 is a deficient number, since it is larger than the sum of its proper divisors (107883397539).

212269329693 is a wasteful number, since it uses less digits than its factorization.

212269329693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674865 (or 674862 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The spelling of 212269329693 in words is "two hundred twelve billion, two hundred sixty-nine million, three hundred twenty-nine thousand, six hundred ninety-three".