2100897563 has 2 divisors, whose sum is σ = 2100897564. Its totient is φ = 2100897562.

The previous prime is 2100897551. The next prime is 2100897611. The reversal of 2100897563 is 3657980012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100897563 - 2⁸ = 2100897307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2100897563.

It is not a weakly prime, because it can be changed into another prime (2100894563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050448781 + 1050448782.

It is an arithmetic number, because the mean of its divisors is an integer number (1050448782).

Almost surely, 2^2100897563 is an apocalyptic number.

2100897563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100897563 is an equidigital number, since it uses as much as digits as its factorization.

2100897563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 2100897563 is about 45835.5491185608. The cubic root of 2100897563 is about 1280.7615835209.

The spelling of 2100897563 in words is "two billion, one hundred million, eight hundred ninety-seven thousand, five hundred sixty-three".