214379675981 has 2 divisors, whose sum is σ = 214379675982. Its totient is φ = 214379675980.

The previous prime is 214379675933. The next prime is 214379676001. The reversal of 214379675981 is 189576973412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213102256900 + 1277419081 = 461630^2 + 35741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214379675981 is a prime.

It is a super-2 number, since 2×214379675981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214379375981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107189837990 + 107189837991.

It is an arithmetic number, because the mean of its divisors is an integer number (107189837991).

Almost surely, 2^214379675981 is an apocalyptic number.

It is an amenable number.

214379675981 is a deficient number, since it is larger than the sum of its proper divisors (1).

214379675981 is an equidigital number, since it uses as much as digits as its factorization.

214379675981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 62.

The spelling of 214379675981 in words is "two hundred fourteen billion, three hundred seventy-nine million, six hundred seventy-five thousand, nine hundred eighty-one".