546244042621 has 2 divisors, whose sum is σ = 546244042622. Its totient is φ = 546244042620.

The previous prime is 546244042583. The next prime is 546244042649. The reversal of 546244042621 is 126240442645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489559099225 + 56684943396 = 699685^2 + 238086^2 .

It is a cyclic number.

It is not a de Polignac number, because 546244042621 - 2¹⁵ = 546244009853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546244042681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273122021310 + 273122021311.

It is an arithmetic number, because the mean of its divisors is an integer number (273122021311).

Almost surely, 2^546244042621 is an apocalyptic number.

It is an amenable number.

546244042621 is a deficient number, since it is larger than the sum of its proper divisors (1).

546244042621 is an equidigital number, since it uses as much as digits as its factorization.

546244042621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 40.

The spelling of 546244042621 in words is "five hundred forty-six billion, two hundred forty-four million, forty-two thousand, six hundred twenty-one".