546244042649 has 2 divisors, whose sum is σ = 546244042650. Its totient is φ = 546244042648.

The previous prime is 546244042621. The next prime is 546244042667. The reversal of 546244042649 is 946240442645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369901158025 + 176342884624 = 608195^2 + 419932^2 .

It is a cyclic number.

It is not a de Polignac number, because 546244042649 - 2²⁸ = 545975607193 is a prime.

It is a super-3 number, since 3×546244042649³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 546244042597 and 546244042606.

It is not a weakly prime, because it can be changed into another prime (546244042699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273122021324 + 273122021325.

It is an arithmetic number, because the mean of its divisors is an integer number (273122021325).

Almost surely, 2^546244042649 is an apocalyptic number.

It is an amenable number.

546244042649 is a deficient number, since it is larger than the sum of its proper divisors (1).

546244042649 is an equidigital number, since it uses as much as digits as its factorization.

546244042649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6635520, while the sum is 50.

The spelling of 546244042649 in words is "five hundred forty-six billion, two hundred forty-four million, forty-two thousand, six hundred forty-nine".