812400924880 has 40 divisors (see below), whose sum is σ = 1894275535392. Its totient is φ = 324023873664.

The previous prime is 812400924871. The next prime is 812400924941. The reversal of 812400924880 is 88429004218.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 812400924880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14604822 + ... + 14660341.

Almost surely, 2^812400924880 is an apocalyptic number.

812400924880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

812400924880 is an abundant number, since it is smaller than the sum of its proper divisors (1081874610512).

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

812400924880 is a wasteful number, since it uses less digits than its factorization.

812400924880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29265523 (or 29265517 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 812400924880 in words is "eight hundred twelve billion, four hundred million, nine hundred twenty-four thousand, eight hundred eighty".