2197147663 has 2 divisors, whose sum is σ = 2197147664. Its totient is φ = 2197147662.

The previous prime is 2197147639. The next prime is 2197147769. The reversal of 2197147663 is 3667417912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2197147663 - 2¹³ = 2197139471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2197147063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098573831 + 1098573832.

It is an arithmetic number, because the mean of its divisors is an integer number (1098573832).

Almost surely, 2^2197147663 is an apocalyptic number.

2197147663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197147663 is an equidigital number, since it uses as much as digits as its factorization.

2197147663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 2197147663 is about 46873.7417217785. The cubic root of 2197147663 is about 1300.0291241996.

The spelling of 2197147663 in words is "two billion, one hundred ninety-seven million, one hundred forty-seven thousand, six hundred sixty-three".