40042832617 has 2 divisors, whose sum is σ = 40042832618. Its totient is φ = 40042832616.

The previous prime is 40042832611. The next prime is 40042832623. The reversal of 40042832617 is 71623824004.

40042832617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (40042832611) and next prime (40042832623).

It can be written as a sum of positive squares in only one way, i.e., 27376680681 + 12666151936 = 165459^2 + 112544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40042832617 is a prime.

It is not a weakly prime, because it can be changed into another prime (40042832611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20021416308 + 20021416309.

It is an arithmetic number, because the mean of its divisors is an integer number (20021416309).

Almost surely, 2^40042832617 is an apocalyptic number.

It is an amenable number.

40042832617 is a deficient number, since it is larger than the sum of its proper divisors (1).

40042832617 is an equidigital number, since it uses as much as digits as its factorization.

40042832617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 40042832617 in words is "forty billion, forty-two million, eight hundred thirty-two thousand, six hundred seventeen".