2196669731 has 2 divisors, whose sum is σ = 2196669732. Its totient is φ = 2196669730.

The previous prime is 2196669689. The next prime is 2196669733. The reversal of 2196669731 is 1379666912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2196669731 - 2²² = 2192475427 is a prime.

It is a super-2 number, since 2×2196669731² = 9650715814183224722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2196669733, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2196669731.

It is not a weakly prime, because it can be changed into another prime (2196669733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098334865 + 1098334866.

It is an arithmetic number, because the mean of its divisors is an integer number (1098334866).

Almost surely, 2^2196669731 is an apocalyptic number.

2196669731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196669731 is an equidigital number, since it uses as much as digits as its factorization.

2196669731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 50.

The square root of 2196669731 is about 46868.6433663276. The cubic root of 2196669731 is about 1299.9348549209.

The spelling of 2196669731 in words is "two billion, one hundred ninety-six million, six hundred sixty-nine thousand, seven hundred thirty-one".