40542032417 has 2 divisors, whose sum is σ = 40542032418. Its totient is φ = 40542032416.

The previous prime is 40542032389. The next prime is 40542032467. The reversal of 40542032417 is 71423024504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22382852881 + 18159179536 = 149609^2 + 134756^2 .

It is a cyclic number.

It is not a de Polignac number, because 40542032417 - 2¹⁸ = 40541770273 is a prime.

It is not a weakly prime, because it can be changed into another prime (40542032467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20271016208 + 20271016209.

It is an arithmetic number, because the mean of its divisors is an integer number (20271016209).

Almost surely, 2^40542032417 is an apocalyptic number.

It is an amenable number.

40542032417 is a deficient number, since it is larger than the sum of its proper divisors (1).

40542032417 is an equidigital number, since it uses as much as digits as its factorization.

40542032417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 40542032417 in words is "forty billion, five hundred forty-two million, thirty-two thousand, four hundred seventeen".