40813775136 has 72 divisors (see below), whose sum is σ = 117129072060. Its totient is φ = 13479768576.

The previous prime is 40813775131. The next prime is 40813775179. The reversal of 40813775136 is 63157731804.

It can be written as a sum of positive squares in 2 ways, for example, as 40579685136 + 234090000 = 201444^2 + 15300^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 40813775091 and 40813775100.

It is not an unprimeable number, because it can be changed into a prime (40813775131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618675 + ... + 681458.

Almost surely, 2^40813775136 is an apocalyptic number.

It is an amenable number.

40813775136 is an abundant number, since it is smaller than the sum of its proper divisors (76315296924).

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

40813775136 is a wasteful number, since it uses less digits than its factorization.

40813775136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300258 (or 1300247 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 40813775136 in words is "forty billion, eight hundred thirteen million, seven hundred seventy-five thousand, one hundred thirty-six".