11612466997849 has 45 divisors (see below), whose sum is σ = 12678312555567. Its totient is φ = 10634662958976.

The previous prime is 11612466997799. The next prime is 11612466997913. The reversal of 11612466997849 is 94879966421611.

The square root of 11612466997849 is 3407707.

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., 5214440755225 + 6398026242624 = 2283515^2 + 2529432^2 .

It is not a de Polignac number, because 11612466997849 - 2²¹ = 11612464900697 is a prime.

It is a super-2 number, since 2×11612466997849² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11612466991849) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 119716154569 + ... + 119716154665.

Almost surely, 2^{11612466997849} is an apocalyptic number.

11612466997849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11612466997849 is the 3407707-th square number.

11612466997849 is the 1703854-th centered octagonal number.

It is an amenable number.

11612466997849 is a deficient number, since it is larger than the sum of its proper divisors (1065845557718).

11612466997849 is an frugal number, since it uses more digits than its factorization.

11612466997849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 159 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 73.

The spelling of 11612466997849 in words is "eleven trillion, six hundred twelve billion, four hundred sixty-six million, nine hundred ninety-seven thousand, eight hundred forty-nine".