201328774897 has 2 divisors, whose sum is σ = 201328774898. Its totient is φ = 201328774896.

The previous prime is 201328774891. The next prime is 201328774939. The reversal of 201328774897 is 798477823102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170605345936 + 30723428961 = 413044^2 + 175281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201328774897 is a prime.

It is not a weakly prime, because it can be changed into another prime (201328774891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100664387448 + 100664387449.

It is an arithmetic number, because the mean of its divisors is an integer number (100664387449).

Almost surely, 2^201328774897 is an apocalyptic number.

It is an amenable number.

201328774897 is a deficient number, since it is larger than the sum of its proper divisors (1).

201328774897 is an equidigital number, since it uses as much as digits as its factorization.

201328774897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9483264, while the sum is 58.

The spelling of 201328774897 in words is "two hundred one billion, three hundred twenty-eight million, seven hundred seventy-four thousand, eight hundred ninety-seven".