40518657575431 has 8 divisors (see below), whose sum is σ = 46893202257920. Its totient is φ = 34290654150168.

The previous prime is 40518657575423. The next prime is 40518657575443. The reversal of 40518657575431 is 13457575681504.

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 40518657575431 - 2³ = 40518657575423 is a prime.

It is a super-2 number, since 2×40518657575431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40518657575431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40518657575491) 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, 36635313711 + ... + 36635314816.

It is an arithmetic number, because the mean of its divisors is an integer number (5861650282240).

Almost surely, 2^{40518657575431} is an apocalyptic number.

40518657575431 is a deficient number, since it is larger than the sum of its proper divisors (6374544682489).

40518657575431 is an equidigital number, since it uses as much as digits as its factorization.

40518657575431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73270628613.

The product of its (nonzero) digits is 70560000, while the sum is 61.

The spelling of 40518657575431 in words is "forty trillion, five hundred eighteen billion, six hundred fifty-seven million, five hundred seventy-five thousand, four hundred thirty-one".