40243107457 has 4 divisors (see below), whose sum is σ = 45992122816. Its totient is φ = 34494092100.

The previous prime is 40243107451. The next prime is 40243107481. The reversal of 40243107457 is 75470134204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40243107457 - 2⁷ = 40243107329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40243107451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2874507669 + ... + 2874507682.

It is an arithmetic number, because the mean of its divisors is an integer number (11498030704).

Almost surely, 2^40243107457 is an apocalyptic number.

It is an amenable number.

40243107457 is a deficient number, since it is larger than the sum of its proper divisors (5749015359).

40243107457 is an equidigital number, since it uses as much as digits as its factorization.

40243107457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749015358.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 40243107457 in words is "forty billion, two hundred forty-three million, one hundred seven thousand, four hundred fifty-seven".