42355135332449 has 2 divisors, whose sum is σ = 42355135332450. Its totient is φ = 42355135332448.

The previous prime is 42355135332373. The next prime is 42355135332457. The reversal of 42355135332449 is 94423353155324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25730205525025 + 16624929807424 = 5072495^2 + 4077368^2 .

It is a cyclic number.

It is not a de Polignac number, because 42355135332449 - 2²⁰ = 42355134283873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42355135332449.

It is not a weakly prime, because it can be changed into another prime (42355135332479) 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, 21177567666224 + 21177567666225.

It is an arithmetic number, because the mean of its divisors is an integer number (21177567666225).

Almost surely, 2^{42355135332449} is an apocalyptic number.

It is an amenable number.

42355135332449 is a deficient number, since it is larger than the sum of its proper divisors (1).

42355135332449 is an equidigital number, since it uses as much as digits as its factorization.

42355135332449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328000, while the sum is 53.

The spelling of 42355135332449 in words is "forty-two trillion, three hundred fifty-five billion, one hundred thirty-five million, three hundred thirty-two thousand, four hundred forty-nine".