811864802814 has 16 divisors (see below), whose sum is σ = 1748631883152. Its totient is φ = 249804554688.

The previous prime is 811864802813. The next prime is 811864802821. The reversal of 811864802814 is 418208468118.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811864802813) 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, 5204261479 + ... + 5204261634.

It is an arithmetic number, because the mean of its divisors is an integer number (109289492697).

Almost surely, 2^811864802814 is an apocalyptic number.

811864802814 is an abundant number, since it is smaller than the sum of its proper divisors (936767080338).

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

811864802814 is a wasteful number, since it uses less digits than its factorization.

811864802814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408523131.

The product of its (nonzero) digits is 786432, while the sum is 51.

The spelling of 811864802814 in words is "eight hundred eleven billion, eight hundred sixty-four million, eight hundred two thousand, eight hundred fourteen".