40352217523 has 4 divisors (see below), whose sum is σ = 40455951120. Its totient is φ = 40248483928.

The previous prime is 40352217481. The next prime is 40352217541. The reversal of 40352217523 is 32571225304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40352217523 - 2¹⁷ = 40352086451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40352214523) 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, 51866215 + ... + 51866992.

It is an arithmetic number, because the mean of its divisors is an integer number (10113987780).

Almost surely, 2^40352217523 is an apocalyptic number.

40352217523 is a deficient number, since it is larger than the sum of its proper divisors (103733597).

40352217523 is a wasteful number, since it uses less digits than its factorization.

40352217523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103733596.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 40352217523 in words is "forty billion, three hundred fifty-two million, two hundred seventeen thousand, five hundred twenty-three".