83563900001 has 2 divisors, whose sum is σ = 83563900002. Its totient is φ = 83563900000.

The previous prime is 83563899977. The next prime is 83563900003. The reversal of 83563900001 is 10000936538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81810300625 + 1753599376 = 286025^2 + 41876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83563900001 is a prime.

Together with 83563900003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83563900003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41781950000 + 41781950001.

It is an arithmetic number, because the mean of its divisors is an integer number (41781950001).

Almost surely, 2^83563900001 is an apocalyptic number.

It is an amenable number.

83563900001 is a deficient number, since it is larger than the sum of its proper divisors (1).

83563900001 is an equidigital number, since it uses as much as digits as its factorization.

83563900001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 83563900001 in words is "eighty-three billion, five hundred sixty-three million, nine hundred thousand, one".