812534154825 has 24 divisors (see below), whose sum is σ = 1344946560768. Its totient is φ = 432849369280.

The previous prime is 812534154821. The next prime is 812534154871. The reversal of 812534154825 is 528451435218.

It is not a de Polignac number, because 812534154825 - 2² = 812534154821 is a prime.

It is a super-3 number, since 3×812534154825³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (812534154821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6212094 + ... + 6341543.

It is an arithmetic number, because the mean of its divisors is an integer number (56039440032).

Almost surely, 2^812534154825 is an apocalyptic number.

It is an amenable number.

812534154825 is a deficient number, since it is larger than the sum of its proper divisors (532412405943).

812534154825 is a wasteful number, since it uses less digits than its factorization.

812534154825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554513 (or 12554508 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 48.

The spelling of 812534154825 in words is "eight hundred twelve billion, five hundred thirty-four million, one hundred fifty-four thousand, eight hundred twenty-five".