213492907909 has 8 divisors (see below), whose sum is σ = 213699570048. Its totient is φ = 213286330320.

The previous prime is 213492907807. The next prime is 213492907949. The reversal of 213492907909 is 909709294312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213492907909 - 2¹³ = 213492899717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213492907909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213492907949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5779719 + ... + 5816539.

It is an arithmetic number, because the mean of its divisors is an integer number (26712446256).

Almost surely, 2^213492907909 is an apocalyptic number.

It is an amenable number.

213492907909 is a deficient number, since it is larger than the sum of its proper divisors (206662139).

213492907909 is a wasteful number, since it uses less digits than its factorization.

213492907909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42275.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The spelling of 213492907909 in words is "two hundred thirteen billion, four hundred ninety-two million, nine hundred seven thousand, nine hundred nine".