812264342450 has 54 divisors (see below), whose sum is σ = 1660787571933. Its totient is φ = 295343360400.

The previous prime is 812264342443. The next prime is 812264342479. The reversal of 812264342450 is 54243462218.

It can be written as a sum of positive squares in 2 ways, for example, as 796019055601 + 16245286849 = 892199^2 + 127457^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=637285.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 812264342398 and 812264342407.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 70095557 + ... + 70107143.

Almost surely, 2^812264342450 is an apocalyptic number.

812264342450 is an abundant number, since it is smaller than the sum of its proper divisors (848523229483).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812264342450 is an equidigital number, since it uses as much as digits as its factorization.

812264342450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23208 (or 11605 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 812264342450 in words is "eight hundred twelve billion, two hundred sixty-four million, three hundred forty-two thousand, four hundred fifty".