40860687338 has 4 divisors (see below), whose sum is σ = 61291031010. Its totient is φ = 20430343668.

The previous prime is 40860687311. The next prime is 40860687347. The reversal of 40860687338 is 83378606804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29731070329 + 11129617009 = 172427^2 + 105497^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40860687338.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215171833 + ... + 10215171836.

Almost surely, 2^40860687338 is an apocalyptic number.

40860687338 is a deficient number, since it is larger than the sum of its proper divisors (20430343672).

40860687338 is a wasteful number, since it uses less digits than its factorization.

40860687338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20430343671.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 40860687338 in words is "forty billion, eight hundred sixty million, six hundred eighty-seven thousand, three hundred thirty-eight".