825853350081 has 16 divisors (see below), whose sum is σ = 1134048470400. Its totient is φ = 534196464768.

The previous prime is 825853350079. The next prime is 825853350121. The reversal of 825853350081 is 180053358528.

It is not a de Polignac number, because 825853350081 - 2¹ = 825853350079 is a prime.

It is a super-2 number, since 2×825853350081² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 825853350081.

It is not an unprimeable number, because it can be changed into a prime (825853350041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10322436 + ... + 10402133.

It is an arithmetic number, because the mean of its divisors is an integer number (70878029400).

Almost surely, 2^825853350081 is an apocalyptic number.

It is an amenable number.

825853350081 is a deficient number, since it is larger than the sum of its proper divisors (308195120319).

825853350081 is a wasteful number, since it uses less digits than its factorization.

825853350081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20724968.

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 825853350081 in words is "eight hundred twenty-five billion, eight hundred fifty-three million, three hundred fifty thousand, eighty-one".