812965450751 has 8 divisors (see below), whose sum is σ = 863253392400. Its totient is φ = 762951558528.

The previous prime is 812965450741. The next prime is 812965450799. The reversal of 812965450751 is 157054569218.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812965450751 is a prime.

It is a super-2 number, since 2×812965450751² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 812965450693 and 812965450702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812965450711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68506241 + ... + 68518106.

It is an arithmetic number, because the mean of its divisors is an integer number (107906674050).

Almost surely, 2^812965450751 is an apocalyptic number.

812965450751 is a deficient number, since it is larger than the sum of its proper divisors (50287941649).

812965450751 is a wasteful number, since it uses less digits than its factorization.

812965450751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137024713.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The spelling of 812965450751 in words is "eight hundred twelve billion, nine hundred sixty-five million, four hundred fifty thousand, seven hundred fifty-one".