40807257717 has 8 divisors (see below), whose sum is σ = 54412115296. Its totient is φ = 27203619312.

The previous prime is 40807257713. The next prime is 40807257721. The reversal of 40807257717 is 71775270804.

It is an interprime number because it is at equal distance from previous prime (40807257713) and next prime (40807257721).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40807257717 - 2² = 40807257713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40807257713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223603 + ... + 362784.

It is an arithmetic number, because the mean of its divisors is an integer number (6801514412).

Almost surely, 2^40807257717 is an apocalyptic number.

It is an amenable number.

40807257717 is a deficient number, since it is larger than the sum of its proper divisors (13604857579).

40807257717 is a wasteful number, since it uses less digits than its factorization.

40807257717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609587.

The product of its (nonzero) digits is 768320, while the sum is 48.

The spelling of 40807257717 in words is "forty billion, eight hundred seven million, two hundred fifty-seven thousand, seven hundred seventeen".