40740370217 has 4 divisors (see below), whose sum is σ = 40824026496. Its totient is φ = 40656713940.

The previous prime is 40740370213. The next prime is 40740370267. The reversal of 40740370217 is 71207304704.

It is a happy number.

40740370217 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 40740370217 - 2² = 40740370213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40740370213) 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, 41827409 + ... + 41828382.

It is an arithmetic number, because the mean of its divisors is an integer number (10206006624).

Almost surely, 2^40740370217 is an apocalyptic number.

It is an amenable number.

40740370217 is a deficient number, since it is larger than the sum of its proper divisors (83656279).

40740370217 is an equidigital number, since it uses as much as digits as its factorization.

40740370217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83656278.

The product of its (nonzero) digits is 32928, while the sum is 35.

The spelling of 40740370217 in words is "forty billion, seven hundred forty million, three hundred seventy thousand, two hundred seventeen".