21300084717870 has 32 divisors (see below), whose sum is σ = 58423089512448. Its totient is φ = 4868590792608.

The previous prime is 21300084717833. The next prime is 21300084717893. The reversal of 21300084717870 is 7871748000312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50714487214 + ... + 50714487633.

It is an arithmetic number, because the mean of its divisors is an integer number (1825721547264).

Almost surely, 2^{21300084717870} is an apocalyptic number.

21300084717870 is an abundant number, since it is smaller than the sum of its proper divisors (37123004794578).

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

21300084717870 is a wasteful number, since it uses less digits than its factorization.

21300084717870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101428974864.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 21300084717870 in words is "twenty-one trillion, three hundred billion, eighty-four million, seven hundred seventeen thousand, eight hundred seventy".