40531036005 has 48 divisors (see below), whose sum is σ = 71554129920. Its totient is φ = 21219778944.

The previous prime is 40531036001. The next prime is 40531036027. The reversal of 40531036005 is 50063013504.

40531036005 is a `hidden beast` number, since 4 + 0 + 53 + 1 + 0 + 3 + 600 + 5 = 666.

It is not a de Polignac number, because 40531036005 - 2² = 40531036001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40531036005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40531036001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 551836 + ... + 620954.

It is an arithmetic number, because the mean of its divisors is an integer number (1490711040).

Almost surely, 2^40531036005 is an apocalyptic number.

40531036005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40531036005 is a deficient number, since it is larger than the sum of its proper divisors (31023093915).

40531036005 is a wasteful number, since it uses less digits than its factorization.

40531036005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69370 (or 69367 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 40531036005 its reverse (50063013504), we get a palindrome (90594049509).

The spelling of 40531036005 in words is "forty billion, five hundred thirty-one million, thirty-six thousand, five".