40317827557 has 8 divisors (see below), whose sum is σ = 46524872576. Its totient is φ = 34222621392.

The previous prime is 40317827549. The next prime is 40317827569. The reversal of 40317827557 is 75572871304.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40317827557 - 2³ = 40317827549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40317827557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40317827257) 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 7 ways as a sum of consecutive naturals, for example, 27958938 + ... + 27960379.

It is an arithmetic number, because the mean of its divisors is an integer number (5815609072).

Almost surely, 2^40317827557 is an apocalyptic number.

It is an amenable number.

40317827557 is a deficient number, since it is larger than the sum of its proper divisors (6207045019).

40317827557 is a wasteful number, since it uses less digits than its factorization.

40317827557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55919427.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 40317827557 in words is "forty billion, three hundred seventeen million, eight hundred twenty-seven thousand, five hundred fifty-seven".