2192677381 has 2 divisors, whose sum is σ = 2192677382. Its totient is φ = 2192677380.

The previous prime is 2192677343. The next prime is 2192677429. The reversal of 2192677381 is 1837762912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1818254881 + 374422500 = 42641^2 + 19350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2192677381 is a prime.

It is a super-2 number, since 2×2192677381² = 9615668194298038322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2192677301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096338690 + 1096338691.

It is an arithmetic number, because the mean of its divisors is an integer number (1096338691).

Almost surely, 2^2192677381 is an apocalyptic number.

It is an amenable number.

2192677381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2192677381 is an equidigital number, since it uses as much as digits as its factorization.

2192677381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The square root of 2192677381 is about 46826.0331546459. The cubic root of 2192677381 is about 1299.1468526559.

The spelling of 2192677381 in words is "two billion, one hundred ninety-two million, six hundred seventy-seven thousand, three hundred eighty-one".