211764363349 has 12 divisors (see below), whose sum is σ = 268732513728. Its totient is φ = 165011191800.

The previous prime is 211764363331. The next prime is 211764363353. The reversal of 211764363349 is 943363467112.

It is not a de Polignac number, because 211764363349 - 2⁹ = 211764362837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211764360349) 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, 196441357 + ... + 196442434.

It is an arithmetic number, because the mean of its divisors is an integer number (22394376144).

Almost surely, 2^211764363349 is an apocalyptic number.

It is an amenable number.

211764363349 is a deficient number, since it is larger than the sum of its proper divisors (56968150379).

211764363349 is a wasteful number, since it uses less digits than its factorization.

211764363349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392883816 (or 392883809 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 49.

The spelling of 211764363349 in words is "two hundred eleven billion, seven hundred sixty-four million, three hundred sixty-three thousand, three hundred forty-nine".