544242589381 has 4 divisors (see below), whose sum is σ = 544308383052. Its totient is φ = 544176795712.

The previous prime is 544242589351. The next prime is 544242589399. The reversal of 544242589381 is 183985242445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 371531697156 + 172710892225 = 609534^2 + 415585^2 .

It is a cyclic number.

It is not a de Polignac number, because 544242589381 - 2⁵ = 544242589349 is a prime.

It is a super-2 number, since 2×544242589381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544242589351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32884426 + ... + 32900971.

It is an arithmetic number, because the mean of its divisors is an integer number (136077095763).

Almost surely, 2^544242589381 is an apocalyptic number.

It is an amenable number.

544242589381 is a deficient number, since it is larger than the sum of its proper divisors (65793671).

544242589381 is an equidigital number, since it uses as much as digits as its factorization.

544242589381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65793670.

The product of its digits is 11059200, while the sum is 55.

The spelling of 544242589381 in words is "five hundred forty-four billion, two hundred forty-two million, five hundred eighty-nine thousand, three hundred eighty-one".