813448485025 has 96 divisors (see below), whose sum is σ = 1133943422976. Its totient is φ = 573804000000.

The previous prime is 813448485013. The next prime is 813448485029. The reversal of 813448485025 is 520584844318.

It is not a de Polignac number, because 813448485025 - 2²⁵ = 813414930593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (813448485029) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1083153400 + ... + 1083154150.

It is an arithmetic number, because the mean of its divisors is an integer number (11811910656).

Almost surely, 2^813448485025 is an apocalyptic number.

It is an amenable number.

813448485025 is a deficient number, since it is larger than the sum of its proper divisors (320494937951).

813448485025 is a wasteful number, since it uses less digits than its factorization.

813448485025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 52.

The spelling of 813448485025 in words is "eight hundred thirteen billion, four hundred forty-eight million, four hundred eighty-five thousand, twenty-five".