811425012238 has 8 divisors (see below), whose sum is σ = 1217971749960. Its totient is φ = 405434428920.

The previous prime is 811425012193. The next prime is 811425012239. The reversal of 811425012238 is 832210524118.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 811425012197 and 811425012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811425012239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139034953 + ... + 139040788.

It is an arithmetic number, because the mean of its divisors is an integer number (152246468745).

Almost surely, 2^811425012238 is an apocalyptic number.

811425012238 is a deficient number, since it is larger than the sum of its proper divisors (406546737722).

811425012238 is a wasteful number, since it uses less digits than its factorization.

811425012238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278077202.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 811425012238 in words is "eight hundred eleven billion, four hundred twenty-five million, twelve thousand, two hundred thirty-eight".