211624640349 has 8 divisors (see below), whose sum is σ = 286948665120. Its totient is φ = 138691854576.

The previous prime is 211624640323. The next prime is 211624640363. The reversal of 211624640349 is 943046426112.

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

It is not a de Polignac number, because 211624640349 - 2¹² = 211624636253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211624640349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211624640749) 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, 597809542 + ... + 597809895.

It is an arithmetic number, because the mean of its divisors is an integer number (35868583140).

Almost surely, 2^211624640349 is an apocalyptic number.

It is an amenable number.

211624640349 is a deficient number, since it is larger than the sum of its proper divisors (75324024771).

211624640349 is a wasteful number, since it uses less digits than its factorization.

211624640349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195619499.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 211624640349 in words is "two hundred eleven billion, six hundred twenty-four million, six hundred forty thousand, three hundred forty-nine".