40243663331488 has 24 divisors (see below), whose sum is σ = 81961771226580. Its totient is φ = 19427975400960.

The previous prime is 40243663331447. The next prime is 40243663331653. The reversal of 40243663331488 is 88413336634204.

It can be written as a sum of positive squares in 2 ways, for example, as 40211172547984 + 32490783504 = 6341228^2 + 180252^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21683007333 + ... + 21683009188.

Almost surely, 2^{40243663331488} is an apocalyptic number.

It is an amenable number.

40243663331488 is an abundant number, since it is smaller than the sum of its proper divisors (41718107895092).

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

40243663331488 is a wasteful number, since it uses less digits than its factorization.

40243663331488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43366016560 (or 43366016552 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 55.

The spelling of 40243663331488 in words is "forty trillion, two hundred forty-three billion, six hundred sixty-three million, three hundred thirty-one thousand, four hundred eighty-eight".