211648998276679 has 16 divisors (see below), whose sum is σ = 219133726680960. Its totient is φ = 204259853463840.

The previous prime is 211648998276659. The next prime is 211648998276707. The reversal of 211648998276679 is 976672899846112.

It is a cyclic number.

It is not a de Polignac number, because 211648998276679 - 2⁹ = 211648998276167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211648998276596 and 211648998276605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211648998276659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13249129 + ... + 24471154.

It is an arithmetic number, because the mean of its divisors is an integer number (13695857917560).

Almost surely, 2^{211648998276679} is an apocalyptic number.

211648998276679 is a deficient number, since it is larger than the sum of its proper divisors (7484728404281).

211648998276679 is a wasteful number, since it uses less digits than its factorization.

211648998276679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37721550.

The product of its digits is 7900913664, while the sum is 85.

The spelling of 211648998276679 in words is "two hundred eleven trillion, six hundred forty-eight billion, nine hundred ninety-eight million, two hundred seventy-six thousand, six hundred seventy-nine".