40013125361 has 16 divisors (see below), whose sum is σ = 43873468800. Its totient is φ = 36190385280.

The previous prime is 40013125319. The next prime is 40013125363. The reversal of 40013125361 is 16352131004.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40013125361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40013125361.

It is not an unprimeable number, because it can be changed into a prime (40013125363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743020 + ... + 1765826.

It is an arithmetic number, because the mean of its divisors is an integer number (2742091800).

Almost surely, 2^40013125361 is an apocalyptic number.

It is an amenable number.

40013125361 is a deficient number, since it is larger than the sum of its proper divisors (3860343439).

40013125361 is a wasteful number, since it uses less digits than its factorization.

40013125361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23624.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 40013125361 its reverse (16352131004), we get a palindrome (56365256365).

The spelling of 40013125361 in words is "forty billion, thirteen million, one hundred twenty-five thousand, three hundred sixty-one".