40636145747522 has 8 divisors (see below), whose sum is σ = 65643004669116. Its totient is φ = 18755144191152.

The previous prime is 40636145747497. The next prime is 40636145747557. The reversal of 40636145747522 is 22574754163604.

It can be written as a sum of positive squares in 2 ways, for example, as 39814093445281 + 822052302241 = 6309841^2 + 906671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 781464341273 + ... + 781464341324.

Almost surely, 2^{40636145747522} is an apocalyptic number.

40636145747522 is a deficient number, since it is larger than the sum of its proper divisors (25006858921594).

40636145747522 is a wasteful number, since it uses less digits than its factorization.

40636145747522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562928682612.

The product of its (nonzero) digits is 33868800, while the sum is 56.

The spelling of 40636145747522 in words is "forty trillion, six hundred thirty-six billion, one hundred forty-five million, seven hundred forty-seven thousand, five hundred twenty-two".