2114467781 has 2 divisors, whose sum is σ = 2114467782. Its totient is φ = 2114467780.

The previous prime is 2114467753. The next prime is 2114467793. The reversal of 2114467781 is 1877644112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2085748900 + 28718881 = 45670^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 2114467781 - 2¹⁴ = 2114451397 is a prime.

It is a super-2 number, since 2×2114467781² = 8941947993774127922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2114467721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057233890 + 1057233891.

It is an arithmetic number, because the mean of its divisors is an integer number (1057233891).

Almost surely, 2^2114467781 is an apocalyptic number.

It is an amenable number.

2114467781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2114467781 is an equidigital number, since it uses as much as digits as its factorization.

2114467781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 41.

The square root of 2114467781 is about 45983.3424296234. The cubic root of 2114467781 is about 1283.5132529141.

The spelling of 2114467781 in words is "two billion, one hundred fourteen million, four hundred sixty-seven thousand, seven hundred eighty-one".