40745862617 has 4 divisors (see below), whose sum is σ = 40750261200. Its totient is φ = 40741464036.

The previous prime is 40745862611. The next prime is 40745862671. The reversal of 40745862617 is 71626854704.

40745862617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40745862617 - 2¹² = 40745858521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40745862611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2185367 + ... + 2203932.

It is an arithmetic number, because the mean of its divisors is an integer number (10187565300).

Almost surely, 2^40745862617 is an apocalyptic number.

It is an amenable number.

40745862617 is a deficient number, since it is larger than the sum of its proper divisors (4398583).

40745862617 is an equidigital number, since it uses as much as digits as its factorization.

40745862617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398582.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 40745862617 in words is "forty billion, seven hundred forty-five million, eight hundred sixty-two thousand, six hundred seventeen".