40563613964944 has 160 divisors (see below), whose sum is σ = 93758381579520. Its totient is φ = 16632951422976.

The previous prime is 40563613964851. The next prime is 40563613965001. The reversal of 40563613964944 is 44946931636504.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2526218164 + ... + 2526234220.

It is an arithmetic number, because the mean of its divisors is an integer number (585989884872).

Almost surely, 2^{40563613964944} 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 40563613964944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46879190789760).

40563613964944 is an abundant number, since it is smaller than the sum of its proper divisors (53194767614576).

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

40563613964944 is a wasteful number, since it uses less digits than its factorization.

40563613964944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23097 (or 23091 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 64.

The spelling of 40563613964944 in words is "forty trillion, five hundred sixty-three billion, six hundred thirteen million, nine hundred sixty-four thousand, nine hundred forty-four".