11426113449 has 63 divisors (see below), whose sum is σ = 17772944007. Its totient is φ = 7342266384.

The previous prime is 11426113417. The next prime is 11426113451. The reversal of 11426113449 is 94431162411.

The square root of 11426113449 is 106893.

It is a perfect power (a square), and thus also a powerful number.

11426113449 is a `hidden beast` number, since 1 + 1 + 4 + 2 + 611 + 34 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10224243225 + 1201870224 = 101115^2 + 34668^2 .

It is not a de Polignac number, because 11426113449 - 2⁵ = 11426113417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11426113409) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 106786054 + ... + 106786160.

Almost surely, 2^11426113449 is an apocalyptic number.

11426113449 is the 106893-rd square number.

11426113449 is the 53447-th centered octagonal number.

It is an amenable number.

11426113449 is a deficient number, since it is larger than the sum of its proper divisors (6346830558).

11426113449 is an frugal number, since it uses more digits than its factorization.

11426113449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 147 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

Multiplying 11426113449 by its sum of digits (36), we get a square (411340084164 = 641358²).

Multiplying 11426113449 by its product of digits (20736), we get a square (236931888478464 = 15392592²).

The spelling of 11426113449 in words is "eleven billion, four hundred twenty-six million, one hundred thirteen thousand, four hundred forty-nine".