213378726576 has 80 divisors (see below), whose sum is σ = 552883363200. Its totient is φ = 70912917504.

The previous prime is 213378726569. The next prime is 213378726593. The reversal of 213378726576 is 675627873312.

It is a super-3 number, since 3×213378726576³ (a number of 35 digits) contains 333 as substring.

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, 64095280 + ... + 64098608.

It is an arithmetic number, because the mean of its divisors is an integer number (6911042040).

Almost surely, 2^213378726576 is an apocalyptic number.

It is an amenable number.

213378726576 is an abundant number, since it is smaller than the sum of its proper divisors (339504636624).

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

213378726576 is a wasteful number, since it uses less digits than its factorization.

213378726576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6946 (or 6940 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 57.

The spelling of 213378726576 in words is "two hundred thirteen billion, three hundred seventy-eight million, seven hundred twenty-six thousand, five hundred seventy-six".