42517440733 has 2 divisors, whose sum is σ = 42517440734. Its totient is φ = 42517440732.

The previous prime is 42517440697. The next prime is 42517440737. The reversal of 42517440733 is 33704471524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25793002404 + 16724438329 = 160602^2 + 129323^2 .

It is a cyclic number.

It is not a de Polignac number, because 42517440733 - 2¹⁷ = 42517309661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42517440737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21258720366 + 21258720367.

It is an arithmetic number, because the mean of its divisors is an integer number (21258720367).

Almost surely, 2^42517440733 is an apocalyptic number.

It is an amenable number.

42517440733 is a deficient number, since it is larger than the sum of its proper divisors (1).

42517440733 is an equidigital number, since it uses as much as digits as its factorization.

42517440733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 40.

The spelling of 42517440733 in words is "forty-two billion, five hundred seventeen million, four hundred forty thousand, seven hundred thirty-three".