201075378187 has 2 divisors, whose sum is σ = 201075378188. Its totient is φ = 201075378186.

The previous prime is 201075378169. The next prime is 201075378193. The reversal of 201075378187 is 781873570102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201075378187 - 2³⁵ = 166715639819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201075378187.

It is not a weakly prime, because it can be changed into another prime (201075378167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100537689093 + 100537689094.

It is an arithmetic number, because the mean of its divisors is an integer number (100537689094).

Almost surely, 2^201075378187 is an apocalyptic number.

201075378187 is a deficient number, since it is larger than the sum of its proper divisors (1).

201075378187 is an equidigital number, since it uses as much as digits as its factorization.

201075378187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 201075378187 in words is "two hundred one billion, seventy-five million, three hundred seventy-eight thousand, one hundred eighty-seven".