811803457716 has 24 divisors (see below), whose sum is σ = 1929947844384. Its totient is φ = 265495470240.

The previous prime is 811803457711. The next prime is 811803457739. The reversal of 811803457716 is 617754308118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811803457711) 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, 638209630 + ... + 638210901.

It is an arithmetic number, because the mean of its divisors is an integer number (80414493516).

Almost surely, 2^811803457716 is an apocalyptic number.

It is an amenable number.

811803457716 is an abundant number, since it is smaller than the sum of its proper divisors (1118144386668).

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

811803457716 is a wasteful number, since it uses less digits than its factorization.

811803457716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276420591 (or 1276420589 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 811803457716 in words is "eight hundred eleven billion, eight hundred three million, four hundred fifty-seven thousand, seven hundred sixteen".