40315117108 has 72 divisors (see below), whose sum is σ = 85776493320. Its totient is φ = 16509911040.

The previous prime is 40315117091. The next prime is 40315117127. The reversal of 40315117108 is 80171151304.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 581870884 + 39733246224 = 24122^2 + 199332^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40315117108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514788 + ... + 587908.

It is an arithmetic number, because the mean of its divisors is an integer number (1191340185).

Almost surely, 2^40315117108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40315117108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42888246660).

40315117108 is an abundant number, since it is smaller than the sum of its proper divisors (45461376212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40315117108 is a wasteful number, since it uses less digits than its factorization.

40315117108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73265 (or 73256 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

The spelling of 40315117108 in words is "forty billion, three hundred fifteen million, one hundred seventeen thousand, one hundred eight".