863172923041 has 81 divisors (see below), whose sum is σ = 1053475475787. Its totient is φ = 706391262720.

The previous prime is 863172922901. The next prime is 863172923047. The reversal of 863172923041 is 140329271368.

The square root of 863172923041 is 929071.

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

863172923041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 13 ways, for example, as 848478634641 + 14694288400 = 921129^2 + 121220^2 .

It is not a de Polignac number, because 863172923041 - 2²³ = 863164534433 is a prime.

It is a super-2 number, since 2×863172923041² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 863172922982 and 863172923000.

It is not an unprimeable number, because it can be changed into a prime (863172923047) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 9698572125 + ... + 9698572213.

Almost surely, 2^863172923041 is an apocalyptic number.

863172923041 is the 929071-st square number.

863172923041 is the 464536-th centered octagonal number.

It is an amenable number.

863172923041 is a deficient number, since it is larger than the sum of its proper divisors (190302552746).

863172923041 is an equidigital number, since it uses as much as digits as its factorization.

863172923041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 863172923041 in words is "eight hundred sixty-three billion, one hundred seventy-two million, nine hundred twenty-three thousand, forty-one".