618200070049 has 27 divisors (see below), whose sum is σ = 642932144883. Its totient is φ = 594410292000.

The previous prime is 618200070011. The next prime is 618200070133. The reversal of 618200070049 is 940070002816.

The square root of 618200070049 is 786257.

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., 29788343649 + 588411726400 = 172593^2 + 767080^2 .

It is not a de Polignac number, because 618200070049 - 2¹¹ = 618200068001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618200070349) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4094040124 + ... + 4094040274.

Almost surely, 2^618200070049 is an apocalyptic number.

618200070049 is the 786257-th square number.

618200070049 is the 393129-th centered octagonal number.

It is an amenable number.

618200070049 is a deficient number, since it is larger than the sum of its proper divisors (24732074834).

618200070049 is an frugal number, since it uses more digits than its factorization.

618200070049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 618200070049 in words is "six hundred eighteen billion, two hundred million, seventy thousand, forty-nine".