40809387453 has 8 divisors (see below), whose sum is σ = 56288810400. Its totient is φ = 26268111408.

The previous prime is 40809387413. The next prime is 40809387457. The reversal of 40809387453 is 35478390804.

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

It is not a de Polignac number, because 40809387453 - 2⁶ = 40809387389 is a prime.

It is a super-2 number, since 2×40809387453² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40809387396 and 40809387405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40809387457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234536623 + ... + 234536796.

It is an arithmetic number, because the mean of its divisors is an integer number (7036101300).

Almost surely, 2^40809387453 is an apocalyptic number.

It is an amenable number.

40809387453 is a deficient number, since it is larger than the sum of its proper divisors (15479422947).

40809387453 is a wasteful number, since it uses less digits than its factorization.

40809387453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469073451.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 40809387453 in words is "forty billion, eight hundred nine million, three hundred eighty-seven thousand, four hundred fifty-three".