201373777717 has 12 divisors (see below), whose sum is σ = 235184414976. Its totient is φ = 171918411000.

The previous prime is 201373777637. The next prime is 201373777723. The reversal of 201373777717 is 717777373102.

It is not a de Polignac number, because 201373777717 - 2²³ = 201365389109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201373777757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8174293 + ... + 8198890.

It is an arithmetic number, because the mean of its divisors is an integer number (19598701248).

Almost surely, 2^201373777717 is an apocalyptic number.

It is an amenable number.

201373777717 is a deficient number, since it is larger than the sum of its proper divisors (33810637259).

201373777717 is a wasteful number, since it uses less digits than its factorization.

201373777717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16373448 (or 16373441 counting only the distinct ones).

The product of its (nonzero) digits is 2117682, while the sum is 52.

The spelling of 201373777717 in words is "two hundred one billion, three hundred seventy-three million, seven hundred seventy-seven thousand, seven hundred seventeen".