40312315544 has 16 divisors (see below), whose sum is σ = 75603303720. Its totient is φ = 20151434560.

The previous prime is 40312315541. The next prime is 40312315553. The reversal of 40312315544 is 44551321304.

It is a self number, because there is not a number n which added to its sum of digits gives 40312315544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40312315541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553997 + ... + 622524.

Almost surely, 2^40312315544 is an apocalyptic number.

It is an amenable number.

40312315544 is a deficient number, since it is larger than the sum of its proper divisors (35290988176).

40312315544 is a wasteful number, since it uses less digits than its factorization.

40312315544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180810 (or 1180806 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 40312315544 its reverse (44551321304), we get a palindrome (84863636848).

The spelling of 40312315544 in words is "forty billion, three hundred twelve million, three hundred fifteen thousand, five hundred forty-four".