2162664731 has 2 divisors, whose sum is σ = 2162664732. Its totient is φ = 2162664730.

The previous prime is 2162664719. The next prime is 2162664743. The reversal of 2162664731 is 1374662612.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2162664719) and next prime (2162664743).

It is a cyclic number.

It is not a de Polignac number, because 2162664731 - 2¹⁰ = 2162663707 is a prime.

It is a super-2 number, since 2×2162664731² = 9354237477422604722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2162669731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081332365 + 1081332366.

It is an arithmetic number, because the mean of its divisors is an integer number (1081332366).

Almost surely, 2^2162664731 is an apocalyptic number.

2162664731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162664731 is an equidigital number, since it uses as much as digits as its factorization.

2162664731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 2162664731 is about 46504.4592593011. The cubic root of 2162664731 is about 1293.1921686201.

The spelling of 2162664731 in words is "two billion, one hundred sixty-two million, six hundred sixty-four thousand, seven hundred thirty-one".