201307868372557 has 8 divisors (see below), whose sum is σ = 201343922703000. Its totient is φ = 201271816332864.

The previous prime is 201307868372519. The next prime is 201307868372599. The reversal of 201307868372557 is 755273868703102.

It can be written as a sum of positive squares in 4 ways, for example, as 50692605775876 + 150615262596681 = 7119874^2 + 12272541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201307868372557 - 2⁴⁷ = 60570380017229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201307868342557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180288819 + ... + 181401967.

It is an arithmetic number, because the mean of its divisors is an integer number (25167990337875).

Almost surely, 2^{201307868372557} is an apocalyptic number.

It is an amenable number.

201307868372557 is a deficient number, since it is larger than the sum of its proper divisors (36054330443).

201307868372557 is a wasteful number, since it uses less digits than its factorization.

201307868372557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145375.

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 201307868372557 in words is "two hundred one trillion, three hundred seven billion, eight hundred sixty-eight million, three hundred seventy-two thousand, five hundred fifty-seven".