40051515344 has 20 divisors (see below), whose sum is σ = 80275667460. Its totient is φ = 19335214080.

The previous prime is 40051515341. The next prime is 40051515391. The reversal of 40051515344 is 44351515004.

It can be written as a sum of positive squares in 2 ways, for example, as 33981235600 + 6070279744 = 184340^2 + 77912^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40051515344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40051515341) 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 in 3 ways as a sum of consecutive naturals, for example, 43158497 + ... + 43159424.

It is an arithmetic number, because the mean of its divisors is an integer number (4013783373).

Almost surely, 2^40051515344 is an apocalyptic number.

It is an amenable number.

40051515344 is an abundant number, since it is smaller than the sum of its proper divisors (40224152116).

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

40051515344 is a wasteful number, since it uses less digits than its factorization.

40051515344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86317958 (or 86317952 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 40051515344 in words is "forty billion, fifty-one million, five hundred fifteen thousand, three hundred forty-four".