52618395769 has 9 divisors (see below), whose sum is σ = 55538142543. Its totient is φ = 49844877552.

The previous prime is 52618395757. The next prime is 52618395799. The reversal of 52618395769 is 96759381625.

The square root of 52618395769 is 229387.

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., 1049436025 + 51568959744 = 32395^2 + 227088^2 .

It is not a de Polignac number, because 52618395769 - 2²¹ = 52616298617 is a prime.

It is a super-2 number, since 2×52618395769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52618395719) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4352317 + ... + 4364389.

It is an arithmetic number, because the mean of its divisors is an integer number (6170904727).

Almost surely, 2^52618395769 is an apocalyptic number.

52618395769 is the 229387-th square number.

52618395769 is the 114694-th centered octagonal number.

It is an amenable number.

52618395769 is a deficient number, since it is larger than the sum of its proper divisors (2919746774).

52618395769 is an frugal number, since it uses more digits than its factorization.

52618395769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24184 (or 12092 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 61.

The spelling of 52618395769 in words is "fifty-two billion, six hundred eighteen million, three hundred ninety-five thousand, seven hundred sixty-nine".