42531515335469 has 2 divisors, whose sum is σ = 42531515335470. Its totient is φ = 42531515335468.

The previous prime is 42531515335417. The next prime is 42531515335483. The reversal of 42531515335469 is 96453351513524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40078648792900 + 2452866542569 = 6330770^2 + 1566163^2 .

It is a cyclic number.

It is not a de Polignac number, because 42531515335469 - 2²⁸ = 42531246900013 is a prime.

It is a super-2 number, since 2×42531515335469² (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 (42531515325469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21265757667734 + 21265757667735.

It is an arithmetic number, because the mean of its divisors is an integer number (21265757667735).

Almost surely, 2^{42531515335469} is an apocalyptic number.

It is an amenable number.

42531515335469 is a deficient number, since it is larger than the sum of its proper divisors (1).

42531515335469 is an equidigital number, since it uses as much as digits as its factorization.

42531515335469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160000, while the sum is 56.

The spelling of 42531515335469 in words is "forty-two trillion, five hundred thirty-one billion, five hundred fifteen million, three hundred thirty-five thousand, four hundred sixty-nine".