544635140641 has 2 divisors, whose sum is σ = 544635140642. Its totient is φ = 544635140640.

The previous prime is 544635140633. The next prime is 544635140659. The reversal of 544635140641 is 146041536445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544170307041 + 464833600 = 737679^2 + 21560^2 .

It is a cyclic number.

It is not a de Polignac number, because 544635140641 - 2³ = 544635140633 is a prime.

It is not a weakly prime, because it can be changed into another prime (544635140611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272317570320 + 272317570321.

It is an arithmetic number, because the mean of its divisors is an integer number (272317570321).

Almost surely, 2^544635140641 is an apocalyptic number.

It is an amenable number.

544635140641 is a deficient number, since it is larger than the sum of its proper divisors (1).

544635140641 is an equidigital number, since it uses as much as digits as its factorization.

544635140641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 544635140641 in words is "five hundred forty-four billion, six hundred thirty-five million, one hundred forty thousand, six hundred forty-one".