544551643459 has 2 divisors, whose sum is σ = 544551643460. Its totient is φ = 544551643458.

The previous prime is 544551643411. The next prime is 544551643463. The reversal of 544551643459 is 954346155445.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 544551643459 - 2¹⁷ = 544551512387 is a prime.

It is not a weakly prime, because it can be changed into another prime (544551643469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272275821729 + 272275821730.

It is an arithmetic number, because the mean of its divisors is an integer number (272275821730).

Almost surely, 2^544551643459 is an apocalyptic number.

544551643459 is a deficient number, since it is larger than the sum of its proper divisors (1).

544551643459 is an equidigital number, since it uses as much as digits as its factorization.

544551643459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920000, while the sum is 55.

The spelling of 544551643459 in words is "five hundred forty-four billion, five hundred fifty-one million, six hundred forty-three thousand, four hundred fifty-nine".