40943456544 has 96 divisors (see below), whose sum is σ = 112051646784. Its totient is φ = 13078840320.

The previous prime is 40943456527. The next prime is 40943456549. The reversal of 40943456544 is 44565434904.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 40943456493 and 40943456502.

It is not an unprimeable number, because it can be changed into a prime (40943456549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125214 + ... + 312354.

It is an arithmetic number, because the mean of its divisors is an integer number (1167204654).

Almost surely, 2^40943456544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40943456544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56025823392).

40943456544 is an abundant number, since it is smaller than the sum of its proper divisors (71108190240).

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

40943456544 is a wasteful number, since it uses less digits than its factorization.

40943456544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187250 (or 187242 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 40943456544 in words is "forty billion, nine hundred forty-three million, four hundred fifty-six thousand, five hundred forty-four".