213052403776 has 21 divisors (see below), whose sum is σ = 422783191389. Its totient is φ = 106524355584.

The previous prime is 213052403761. The next prime is 213052403779. The reversal of 213052403776 is 677304250312.

The square root of 213052403776 is 461576.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 204629569600 + 8422834176 = 452360^2 + 91776^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213052403779) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3663760 + ... + 3721456.

Almost surely, 2^213052403776 is an apocalyptic number.

213052403776 is the 461576-th square number.

It is an amenable number.

213052403776 is a deficient number, since it is larger than the sum of its proper divisors (209730787613).

213052403776 is an frugal number, since it uses more digits than its factorization.

213052403776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115406 (or 57699 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 213052403776 in words is "two hundred thirteen billion, fifty-two million, four hundred three thousand, seven hundred seventy-six".