210813677823 has 16 divisors (see below), whose sum is σ = 321264403200. Its totient is φ = 120455766336.

The previous prime is 210813677777. The next prime is 210813677917. The reversal of 210813677823 is 328776318012.

It is not a de Polignac number, because 210813677823 - 2⁸ = 210813677567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210813679823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96273 + ... + 656426.

It is an arithmetic number, because the mean of its divisors is an integer number (20079025200).

Almost surely, 2^210813677823 is an apocalyptic number.

210813677823 is a deficient number, since it is larger than the sum of its proper divisors (110450725377).

210813677823 is a wasteful number, since it uses less digits than its factorization.

210813677823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766046.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 210813677823 in words is "two hundred ten billion, eight hundred thirteen million, six hundred seventy-seven thousand, eight hundred twenty-three".