40781618704 has 10 divisors (see below), whose sum is σ = 79014386270. Its totient is φ = 20390809344.

The previous prime is 40781618701. The next prime is 40781618729.

40781618704 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 37307695104 + 3473923600 = 193152^2 + 58940^2 .

It is not an unprimeable number, because it can be changed into a prime (40781618701) 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 as a sum of consecutive naturals, namely, 1274425569 + ... + 1274425600.

It is an arithmetic number, because the mean of its divisors is an integer number (7901438627).

Almost surely, 2^40781618704 is an apocalyptic number.

It is an amenable number.

40781618704 is a deficient number, since it is larger than the sum of its proper divisors (38232767566).

40781618704 is a wasteful number, since it uses less digits than its factorization.

40781618704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548851177 (or 2548851171 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 40781618704 in words is "forty billion, seven hundred eighty-one million, six hundred eighteen thousand, seven hundred four".