813783230125 has 8 divisors (see below), whose sum is σ = 1015601471352. Its totient is φ = 651026584000.

The previous prime is 813783230083. The next prime is 813783230131. The reversal of 813783230125 is 521032387318.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8792062756 + 804991167369 = 93766^2 + 897213^2 .

It is not a de Polignac number, because 813783230125 - 2⁷ = 813783229997 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3255132796 + ... + 3255133045.

It is an arithmetic number, because the mean of its divisors is an integer number (126950183919).

Almost surely, 2^813783230125 is an apocalyptic number.

It is an amenable number.

813783230125 is a deficient number, since it is larger than the sum of its proper divisors (201818241227).

813783230125 is an equidigital number, since it uses as much as digits as its factorization.

813783230125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6510265856 (or 6510265846 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 813783230125 in words is "eight hundred thirteen billion, seven hundred eighty-three million, two hundred thirty thousand, one hundred twenty-five".