823771802873 has 24 divisors (see below), whose sum is σ = 868332518400. Its totient is φ = 780562744416.

The previous prime is 823771802813. The next prime is 823771802879. The reversal of 823771802873 is 378208177328.

It is not a de Polignac number, because 823771802873 - 2⁶ = 823771802809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823771802879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62480840 + ... + 62494022.

It is an arithmetic number, because the mean of its divisors is an integer number (36180521600).

Almost surely, 2^823771802873 is an apocalyptic number.

It is an amenable number.

823771802873 is a deficient number, since it is larger than the sum of its proper divisors (44560715527).

823771802873 is a wasteful number, since it uses less digits than its factorization.

823771802873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13949 (or 13890 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 823771802873 in words is "eight hundred twenty-three billion, seven hundred seventy-one million, eight hundred two thousand, eight hundred seventy-three".