213776511346 has 32 divisors (see below), whose sum is σ = 346536273600. Its totient is φ = 98593410240.

The previous prime is 213776511287. The next prime is 213776511503. The reversal of 213776511346 is 643115677312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213776511296 and 213776511305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141301 + ... + 668968.

It is an arithmetic number, because the mean of its divisors is an integer number (10829258550).

Almost surely, 2^213776511346 is an apocalyptic number.

213776511346 is a deficient number, since it is larger than the sum of its proper divisors (132759762254).

213776511346 is a wasteful number, since it uses less digits than its factorization.

213776511346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810474.

The product of its digits is 635040, while the sum is 46.

The spelling of 213776511346 in words is "two hundred thirteen billion, seven hundred seventy-six million, five hundred eleven thousand, three hundred forty-six".