875386655641 has 3 divisors (see below), whose sum is σ = 875387591263. Its totient is φ = 875385720020.

The previous prime is 875386655597. The next prime is 875386655651. The reversal of 875386655641 is 146556683578.

It is a happy number.

The square root of 875386655641 is 935621.

It is a perfect power (a square), and thus also a powerful number.

875386655641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 830688239241 + 44698416400 = 911421^2 + 211420^2 .

It is not a de Polignac number, because 875386655641 - 2¹¹ = 875386653593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (875386655651) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 467811 + ... + 1403431.

Almost surely, 2^875386655641 is an apocalyptic number.

875386655641 is the 935621-st square number.

875386655641 is the 467811-st centered octagonal number.

It is an amenable number.

875386655641 is a deficient number, since it is larger than the sum of its proper divisors (935622).

875386655641 is an frugal number, since it uses more digits than its factorization.

875386655641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871242 (or 935621 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 64.

Multiplying 875386655641 by its sum of digits (64), we get a square (56024745961024 = 7484968²).

The spelling of 875386655641 in words is "eight hundred seventy-five billion, three hundred eighty-six million, six hundred fifty-five thousand, six hundred forty-one".