201989031763 has 2 divisors, whose sum is σ = 201989031764. Its totient is φ = 201989031762.

The previous prime is 201989031719. The next prime is 201989031779. The reversal of 201989031763 is 367130989102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201989031763 is a prime.

It is not a weakly prime, because it can be changed into another prime (201989035763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100994515881 + 100994515882.

It is an arithmetic number, because the mean of its divisors is an integer number (100994515882).

Almost surely, 2^201989031763 is an apocalyptic number.

201989031763 is a deficient number, since it is larger than the sum of its proper divisors (1).

201989031763 is an equidigital number, since it uses as much as digits as its factorization.

201989031763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 201989031763 in words is "two hundred one billion, nine hundred eighty-nine million, thirty-one thousand, seven hundred sixty-three".