894172272050 has 54 divisors (see below), whose sum is σ = 1674996514437. Its totient is φ = 355141430720.

The previous prime is 894172272017. The next prime is 894172272053. The reversal of 894172272050 is 50272271498.

It can be written as a sum of positive squares in 14 ways, for example, as 32618888449 + 861553383601 = 180607^2 + 928199^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=668645.

It is a super-2 number, since 2×894172272050² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 894172271986 and 894172272004.

It is not an unprimeable number, because it can be changed into a prime (894172272053) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1156755464 + ... + 1156756236.

Almost surely, 2^894172272050 is an apocalyptic number.

894172272050 is a deficient number, since it is larger than the sum of its proper divisors (780824242387).

894172272050 is an frugal number, since it uses more digits than its factorization.

894172272050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 894172272050 in words is "eight hundred ninety-four billion, one hundred seventy-two million, two hundred seventy-two thousand, fifty".