11444440413 has 32 divisors (see below), whose sum is σ = 17874726912. Its totient is φ = 6376521600.

The previous prime is 11444440393. The next prime is 11444440429. The reversal of 11444440413 is 31404444411.

It is not a de Polignac number, because 11444440413 - 2¹³ = 11444432221 is a prime.

It is a super-2 number, since 2×11444440413² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444440013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2331720 + ... + 2336622.

It is an arithmetic number, because the mean of its divisors is an integer number (558585216).

Almost surely, 2^11444440413 is an apocalyptic number.

It is an amenable number.

11444440413 is a deficient number, since it is larger than the sum of its proper divisors (6430286499).

11444440413 is a wasteful number, since it uses less digits than its factorization.

11444440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 11444440413 its reverse (31404444411), we get a palindrome (42848884824).

The spelling of 11444440413 in words is "eleven billion, four hundred forty-four million, four hundred forty thousand, four hundred thirteen".