41518952644 has 81 divisors (see below), whose sum is σ = 83759185461. Its totient is φ = 17996259840.

The previous prime is 41518952633. The next prime is 41518952659. The reversal of 41518952644 is 44625981514.

The square root of 41518952644 is 203762.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 31741698244 + 9777254400 = 178162^2 + 98880^2 .

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 90062574 + ... + 90063034.

Almost surely, 2^41518952644 is an apocalyptic number.

41518952644 is the 203762-nd square number.

It is an amenable number.

41518952644 is an abundant number, since it is smaller than the sum of its proper divisors (42240232817).

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

41518952644 is a wasteful number, since it uses less digits than its factorization.

41518952644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 493 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

Multiplying 41518952644 by its sum of digits (49), we get a square (2034428679556 = 1426334²).

The spelling of 41518952644 in words is "forty-one billion, five hundred eighteen million, nine hundred fifty-two thousand, six hundred forty-four".