42193981150729 has 2 divisors, whose sum is σ = 42193981150730. Its totient is φ = 42193981150728.

The previous prime is 42193981150709. The next prime is 42193981150733. The reversal of 42193981150729 is 92705118939124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42112571936400 + 81409214329 = 6489420^2 + 285323^2 .

It is a cyclic number.

It is not a de Polignac number, because 42193981150729 - 2⁵ = 42193981150697 is a prime.

It is not a weakly prime, because it can be changed into another prime (42193981150709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21096990575364 + 21096990575365.

It is an arithmetic number, because the mean of its divisors is an integer number (21096990575365).

Almost surely, 2^{42193981150729} is an apocalyptic number.

It is an amenable number.

42193981150729 is a deficient number, since it is larger than the sum of its proper divisors (1).

42193981150729 is an equidigital number, since it uses as much as digits as its factorization.

42193981150729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 42193981150729 in words is "forty-two trillion, one hundred ninety-three billion, nine hundred eighty-one million, one hundred fifty thousand, seven hundred twenty-nine".