11618037369 has 81 divisors (see below), whose sum is σ = 18606038607. Its totient is φ = 6984597600.

The previous prime is 11618037341. The next prime is 11618037419. The reversal of 11618037369 is 96373081611.

The square root of 11618037369 is 107787.

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., 377796969 + 11240240400 = 19437^2 + 106020^2 .

It is not a de Polignac number, because 11618037369 - 2⁷ = 11618037241 is a prime.

It is a super-2 number, since 2×11618037369² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11618037169) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 190459599 + ... + 190459659.

Almost surely, 2^11618037369 is an apocalyptic number.

11618037369 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11618037369 is the 107787-th square number.

11618037369 is the 53894-th centered octagonal number.

It is an amenable number.

11618037369 is a deficient number, since it is larger than the sum of its proper divisors (6988001238).

11618037369 is an equidigital number, since it uses as much as digits as its factorization.

11618037369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 11618037369 in words is "eleven billion, six hundred eighteen million, thirty-seven thousand, three hundred sixty-nine".