1922196761 has 2 divisors, whose sum is σ = 1922196762. Its totient is φ = 1922196760.

The previous prime is 1922196719. The next prime is 1922196791. The reversal of 1922196761 is 1676912291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1238688025 + 683508736 = 35195^2 + 26144^2 .

It is an emirp because it is prime and its reverse (1676912291) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1922196761 is a prime.

It is a super-2 number, since 2×1922196761² = 7389680775997782242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1922196791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961098380 + 961098381.

It is an arithmetic number, because the mean of its divisors is an integer number (961098381).

Almost surely, 2^1922196761 is an apocalyptic number.

It is an amenable number.

1922196761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922196761 is an equidigital number, since it uses as much as digits as its factorization.

1922196761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 1922196761 is about 43842.8644251262. The cubic root of 1922196761 is about 1243.3668388805.

The spelling of 1922196761 in words is "one billion, nine hundred twenty-two million, one hundred ninety-six thousand, seven hundred sixty-one".