857273225851 has 8 divisors (see below), whose sum is σ = 1013524996320. Its totient is φ = 709467497088.

The previous prime is 857273225839. The next prime is 857273225869. The reversal of 857273225851 is 158522372758.

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

It is not a de Polignac number, because 857273225851 - 2²³ = 857264837243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857273225792 and 857273225801.

It is not an unprimeable number, because it can be changed into a prime (857273225801) 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, 2111510206 + ... + 2111510611.

It is an arithmetic number, because the mean of its divisors is an integer number (126690624540).

Almost surely, 2^857273225851 is an apocalyptic number.

857273225851 is a deficient number, since it is larger than the sum of its proper divisors (156251770469).

857273225851 is a wasteful number, since it uses less digits than its factorization.

857273225851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223020853.

The product of its digits is 9408000, while the sum is 55.

The spelling of 857273225851 in words is "eight hundred fifty-seven billion, two hundred seventy-three million, two hundred twenty-five thousand, eight hundred fifty-one".