40147025717 has 4 divisors (see below), whose sum is σ = 40827483840. Its totient is φ = 39466567596.

The previous prime is 40147025689. The next prime is 40147025731. The reversal of 40147025717 is 71752074104.

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 40147025717 - 2¹⁰ = 40147024693 is a prime.

It is a super-2 number, since 2×40147025717² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40147028717) 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, 340228973 + ... + 340229090.

It is an arithmetic number, because the mean of its divisors is an integer number (10206870960).

Almost surely, 2^40147025717 is an apocalyptic number.

It is an amenable number.

40147025717 is a deficient number, since it is larger than the sum of its proper divisors (680458123).

40147025717 is an equidigital number, since it uses as much as digits as its factorization.

40147025717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680458122.

The product of its (nonzero) digits is 54880, while the sum is 38.

The spelling of 40147025717 in words is "forty billion, one hundred forty-seven million, twenty-five thousand, seven hundred seventeen".