85188875807501 has 4 divisors (see below), whose sum is σ = 85192257819900. Its totient is φ = 85185493795104.

The previous prime is 85188875807447. The next prime is 85188875807513. The reversal of 85188875807501 is 10570857888158.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63790156291876 + 21398719515625 = 7986874^2 + 4625875^2 .

It is a cyclic number.

It is not a de Polignac number, because 85188875807501 - 2³⁰ = 85187802065677 is a prime.

It is a super-2 number, since 2×85188875807501² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85188875807801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690968416 + ... + 1691018793.

It is an arithmetic number, because the mean of its divisors is an integer number (21298064454975).

Almost surely, 2^{85188875807501} is an apocalyptic number.

It is an amenable number.

85188875807501 is a deficient number, since it is larger than the sum of its proper divisors (3382012399).

85188875807501 is a wasteful number, since it uses less digits than its factorization.

85188875807501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382012398.

The product of its (nonzero) digits is 200704000, while the sum is 71.

The spelling of 85188875807501 in words is "eighty-five trillion, one hundred eighty-eight billion, eight hundred seventy-five million, eight hundred seven thousand, five hundred one".