42289988655269 has 2 divisors, whose sum is σ = 42289988655270. Its totient is φ = 42289988655268.

The previous prime is 42289988655251. The next prime is 42289988655311. The reversal of 42289988655269 is 96255688998224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40912487386369 + 1377501268900 = 6396287^2 + 1173670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42289988655269 is a prime.

It is a super-2 number, since 2×42289988655269² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42289988655469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21144994327634 + 21144994327635.

It is an arithmetic number, because the mean of its divisors is an integer number (21144994327635).

Almost surely, 2^{42289988655269} is an apocalyptic number.

It is an amenable number.

42289988655269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42289988655269 is an equidigital number, since it uses as much as digits as its factorization.

42289988655269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10749542400, while the sum is 83.

The spelling of 42289988655269 in words is "forty-two trillion, two hundred eighty-nine billion, nine hundred eighty-eight million, six hundred fifty-five thousand, two hundred sixty-nine".