211730077349 has 8 divisors (see below), whose sum is σ = 242000358528. Its totient is φ = 181465578000.

The previous prime is 211730077313. The next prime is 211730077367. The reversal of 211730077349 is 943770037112.

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

It is not a de Polignac number, because 211730077349 - 2²⁸ = 211461641893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211730077249) 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, 1366697 + ... + 1513710.

It is an arithmetic number, because the mean of its divisors is an integer number (30250044816).

Almost surely, 2^211730077349 is an apocalyptic number.

It is an amenable number.

211730077349 is a deficient number, since it is larger than the sum of its proper divisors (30270281179).

211730077349 is a wasteful number, since it uses less digits than its factorization.

211730077349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890915.

The product of its (nonzero) digits is 222264, while the sum is 44.

The spelling of 211730077349 in words is "two hundred eleven billion, seven hundred thirty million, seventy-seven thousand, three hundred forty-nine".