211701694869 has 48 divisors (see below), whose sum is σ = 350366994432. Its totient is φ = 120664331424.

The previous prime is 211701694859. The next prime is 211701694871. The reversal of 211701694869 is 968496107112.

It is not a de Polignac number, because 211701694869 - 2¹² = 211701690773 is a prime.

It is a super-2 number, since 2×211701694869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211701694849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55373892 + ... + 55377714.

It is an arithmetic number, because the mean of its divisors is an integer number (7299312384).

Almost surely, 2^211701694869 is an apocalyptic number.

It is an amenable number.

211701694869 is a deficient number, since it is larger than the sum of its proper divisors (138665299563).

211701694869 is a wasteful number, since it uses less digits than its factorization.

211701694869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846 (or 5843 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 211701694869 in words is "two hundred eleven billion, seven hundred one million, six hundred ninety-four thousand, eight hundred sixty-nine".