40581437450 has 12 divisors (see below), whose sum is σ = 75481473750. Its totient is φ = 16232574960.

The previous prime is 40581437417. The next prime is 40581437453. The reversal of 40581437450 is 5473418504.

It can be written as a sum of positive squares in 3 ways, for example, as 39301873009 + 1279564441 = 198247^2 + 35771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40581437398 and 40581437407.

It is not an unprimeable number, because it can be changed into a prime (40581437453) 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 5 ways as a sum of consecutive naturals, for example, 405814325 + ... + 405814424.

Almost surely, 2^40581437450 is an apocalyptic number.

40581437450 is a deficient number, since it is larger than the sum of its proper divisors (34900036300).

40581437450 is a wasteful number, since it uses less digits than its factorization.

40581437450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811628761 (or 811628756 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 40581437450 in words is "forty billion, five hundred eighty-one million, four hundred thirty-seven thousand, four hundred fifty".