40173056452 has 6 divisors (see below), whose sum is σ = 70302848798. Its totient is φ = 20086528224.

The previous prime is 40173056449. The next prime is 40173056453. The reversal of 40173056452 is 25465037104.

It can be written as a sum of positive squares in only one way, i.e., 22360417156 + 17812639296 = 149534^2 + 133464^2 .

It is a super-2 number, since 2×40173056452² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40173056453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021632053 + ... + 5021632060.

Almost surely, 2^40173056452 is an apocalyptic number.

It is an amenable number.

40173056452 is a deficient number, since it is larger than the sum of its proper divisors (30129792346).

40173056452 is a wasteful number, since it uses less digits than its factorization.

40173056452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10043264117 (or 10043264115 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 40173056452 in words is "forty billion, one hundred seventy-three million, fifty-six thousand, four hundred fifty-two".