209274827373 has 12 divisors (see below), whose sum is σ = 312037019008. Its totient is φ = 135016017480.

The previous prime is 209274827357. The next prime is 209274827401. The reversal of 209274827373 is 373728472902.

It is a happy number.

209274827373 is a `hidden beast` number, since 2 + 0 + 9 + 27 + 482 + 73 + 73 = 666.

It is not a de Polignac number, because 209274827373 - 2⁴ = 209274827357 is a prime.

It is a super-2 number, since 2×209274827373² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209274826373) 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, 375044215 + ... + 375044772.

Almost surely, 2^209274827373 is an apocalyptic number.

It is an amenable number.

209274827373 is a deficient number, since it is larger than the sum of its proper divisors (102762191635).

209274827373 is a wasteful number, since it uses less digits than its factorization.

209274827373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750089024 (or 750089021 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The spelling of 209274827373 in words is "two hundred nine billion, two hundred seventy-four million, eight hundred twenty-seven thousand, three hundred seventy-three".