11498738578441 has 3 divisors (see below), whose sum is σ = 11498741969421. Its totient is φ = 11498735187462.

The previous prime is 11498738578433. The next prime is 11498738578487. The reversal of 11498738578441 is 14487583789411.

The square root of 11498738578441 is 3390979.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 11498738578441 - 2³ = 11498738578433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11498739578441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1695490 + ... + 5086468.

It is an arithmetic number, because the mean of its divisors is an integer number (3832913989807).

Almost surely, 2^{11498738578441} is an apocalyptic number.

11498738578441 is the 3390979-th square number.

11498738578441 is the 1695490-th centered octagonal number.

It is an amenable number.

11498738578441 is a deficient number, since it is larger than the sum of its proper divisors (3390980).

11498738578441 is an frugal number, since it uses more digits than its factorization.

11498738578441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6781958 (or 3390979 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 70.

The spelling of 11498738578441 in words is "eleven trillion, four hundred ninety-eight billion, seven hundred thirty-eight million, five hundred seventy-eight thousand, four hundred forty-one".