813800802102 has 16 divisors (see below), whose sum is σ = 1633934687472. Its totient is φ = 270211420160.

The previous prime is 813800802079. The next prime is 813800802109. The reversal of 813800802102 is 201208008318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813800802109) 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, 263876799 + ... + 263879882.

It is an arithmetic number, because the mean of its divisors is an integer number (102120917967).

Almost surely, 2^813800802102 is an apocalyptic number.

813800802102 is an abundant number, since it is smaller than the sum of its proper divisors (820133885370).

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

813800802102 is a wasteful number, since it uses less digits than its factorization.

813800802102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527756943.

The product of its (nonzero) digits is 6144, while the sum is 33.

The spelling of 813800802102 in words is "eight hundred thirteen billion, eight hundred million, eight hundred two thousand, one hundred two".