40074033457 has 2 divisors, whose sum is σ = 40074033458. Its totient is φ = 40074033456.

The previous prime is 40074033397. The next prime is 40074033473. The reversal of 40074033457 is 75433047004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38645269056 + 1428764401 = 196584^2 + 37799^2 .

It is a cyclic number.

It is not a de Polignac number, because 40074033457 - 2³¹ = 37926549809 is a prime.

It is not a weakly prime, because it can be changed into another prime (40074033487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20037016728 + 20037016729.

It is an arithmetic number, because the mean of its divisors is an integer number (20037016729).

Almost surely, 2^40074033457 is an apocalyptic number.

It is an amenable number.

40074033457 is a deficient number, since it is larger than the sum of its proper divisors (1).

40074033457 is an equidigital number, since it uses as much as digits as its factorization.

40074033457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 37.

The spelling of 40074033457 in words is "forty billion, seventy-four million, thirty-three thousand, four hundred fifty-seven".