213773070736 has 15 divisors (see below), whose sum is σ = 414188907841. Its totient is φ = 106885610656.

The previous prime is 213773070673. The next prime is 213773070737. The reversal of 213773070736 is 637070377312.

The square root of 213773070736 is 462356.

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., 189611477136 + 24161593600 = 435444^2 + 155440^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213773070737) 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, 1791630 + ... + 1907218.

Almost surely, 2^213773070736 is an apocalyptic number.

213773070736 is the 462356-th square number.

It is an amenable number.

213773070736 is a deficient number, since it is larger than the sum of its proper divisors (200415837105).

213773070736 is an frugal number, since it uses more digits than its factorization.

213773070736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231186 (or 115591 counting only the distinct ones).

The product of its (nonzero) digits is 777924, while the sum is 46.

The spelling of 213773070736 in words is "two hundred thirteen billion, seven hundred seventy-three million, seventy thousand, seven hundred thirty-six".