812512937945 has 8 divisors (see below), whose sum is σ = 975108456000. Its totient is φ = 649948396720.

The previous prime is 812512937897. The next prime is 812512937983. The reversal of 812512937945 is 549739215218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 812512937945 - 2¹² = 812512933849 is a prime.

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, 7686461 + ... + 7791450.

It is an arithmetic number, because the mean of its divisors is an integer number (121888557000).

Almost surely, 2^812512937945 is an apocalyptic number.

It is an amenable number.

812512937945 is a deficient number, since it is larger than the sum of its proper divisors (162595518055).

812512937945 is a wasteful number, since it uses less digits than its factorization.

812512937945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15488415.

The product of its digits is 5443200, while the sum is 56.

The spelling of 812512937945 in words is "eight hundred twelve billion, five hundred twelve million, nine hundred thirty-seven thousand, nine hundred forty-five".