812303490851 has 16 divisors (see below), whose sum is σ = 841951756800. Its totient is φ = 783149840928.

The previous prime is 812303490841. The next prime is 812303490881. The reversal of 812303490851 is 158094303218.

It is a cyclic number.

It is not a de Polignac number, because 812303490851 - 2¹⁸ = 812303228707 is a prime.

It is a super-2 number, since 2×812303490851² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812303490841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12805625 + ... + 12868901.

It is an arithmetic number, because the mean of its divisors is an integer number (52621984800).

Almost surely, 2^812303490851 is an apocalyptic number.

812303490851 is a deficient number, since it is larger than the sum of its proper divisors (29648265949).

812303490851 is a wasteful number, since it uses less digits than its factorization.

812303490851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67178.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 812303490851 in words is "eight hundred twelve billion, three hundred three million, four hundred ninety thousand, eight hundred fifty-one".