40244757508138 has 32 divisors (see below), whose sum is σ = 62489906574480. Its totient is φ = 19426028144640.

The previous prime is 40244757508117. The next prime is 40244757508147. The reversal of 40244757508138 is 83180575744204.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1201792565169 + 39042964942969 = 1096263^2 + 6248437^2 .

It is a super-3 number, since 3×40244757508138³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2206453 + ... + 9238936.

Almost surely, 2^{40244757508138} is an apocalyptic number.

40244757508138 is a deficient number, since it is larger than the sum of its proper divisors (22245149066342).

40244757508138 is a wasteful number, since it uses less digits than its factorization.

40244757508138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11445882.

The product of its (nonzero) digits is 30105600, while the sum is 58.

The spelling of 40244757508138 in words is "forty trillion, two hundred forty-four billion, seven hundred fifty-seven million, five hundred eight thousand, one hundred thirty-eight".