40518671972523 has 8 divisors (see below), whose sum is σ = 54024933235200. Its totient is φ = 27012429345768.

The previous prime is 40518671972447. The next prime is 40518671972531. The reversal of 40518671972523 is 32527917681504.

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

It is not a de Polignac number, because 40518671972523 - 2⁸ = 40518671972267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40518671972563) 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, 1625058 + ... + 9147576.

It is an arithmetic number, because the mean of its divisors is an integer number (6753116654400).

It is a 1-persistent number, because it is pandigital, but 2⋅40518671972523 = 81037343945046 is not.

Almost surely, 2^{40518671972523} is an apocalyptic number.

40518671972523 is a deficient number, since it is larger than the sum of its proper divisors (13506261262677).

40518671972523 is a wasteful number, since it uses less digits than its factorization.

40518671972523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9317961.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 40518671972523 in words is "forty trillion, five hundred eighteen billion, six hundred seventy-one million, nine hundred seventy-two thousand, five hundred twenty-three".