544454745397 has 8 divisors (see below), whose sum is σ = 545042406744. Its totient is φ = 543867203328.

The previous prime is 544454745389. The next prime is 544454745421. The reversal of 544454745397 is 793547454445.

It can be written as a sum of positive squares in 4 ways, for example, as 240643226916 + 303811518481 = 490554^2 + 551191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 544454745397 - 2³ = 544454745389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544454745697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11435313 + ... + 11482825.

It is an arithmetic number, because the mean of its divisors is an integer number (68130300843).

Almost surely, 2^544454745397 is an apocalyptic number.

It is an amenable number.

544454745397 is a deficient number, since it is larger than the sum of its proper divisors (587661347).

544454745397 is a wasteful number, since it uses less digits than its factorization.

544454745397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59639.

The product of its digits is 169344000, while the sum is 61.

The spelling of 544454745397 in words is "five hundred forty-four billion, four hundred fifty-four million, seven hundred forty-five thousand, three hundred ninety-seven".