812934617954 has 16 divisors (see below), whose sum is σ = 1242453006648. Its totient is φ = 398784152832.

The previous prime is 812934617941. The next prime is 812934617977. The reversal of 812934617954 is 459716439218.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 633493421929 + 179441196025 = 795923^2 + 423605^2 .

It is a super-2 number, since 2×812934617954² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 812934617893 and 812934617902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3326684 + ... + 3562680.

Almost surely, 2^812934617954 is an apocalyptic number.

812934617954 is a deficient number, since it is larger than the sum of its proper divisors (429518388694).

812934617954 is a wasteful number, since it uses less digits than its factorization.

812934617954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268549.

The product of its digits is 13063680, while the sum is 59.

The spelling of 812934617954 in words is "eight hundred twelve billion, nine hundred thirty-four million, six hundred seventeen thousand, nine hundred fifty-four".