42544210537 has 2 divisors, whose sum is σ = 42544210538. Its totient is φ = 42544210536.

The previous prime is 42544210531. The next prime is 42544210549. The reversal of 42544210537 is 73501244524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30309417216 + 12234793321 = 174096^2 + 110611^2 .

It is a cyclic number.

It is not a de Polignac number, because 42544210537 - 2⁷ = 42544210409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42544210496 and 42544210505.

It is not a weakly prime, because it can be changed into another prime (42544210531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21272105268 + 21272105269.

It is an arithmetic number, because the mean of its divisors is an integer number (21272105269).

Almost surely, 2^42544210537 is an apocalyptic number.

It is an amenable number.

42544210537 is a deficient number, since it is larger than the sum of its proper divisors (1).

42544210537 is an equidigital number, since it uses as much as digits as its factorization.

42544210537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 42544210537 in words is "forty-two billion, five hundred forty-four million, two hundred ten thousand, five hundred thirty-seven".