40448643755532 has 24 divisors (see below), whose sum is σ = 94382165060400. Its totient is φ = 13482596066496.

The previous prime is 40448643755461. The next prime is 40448643755539. The reversal of 40448643755532 is 23555734684404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40448643755539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35056807 + ... + 36192222.

It is an arithmetic number, because the mean of its divisors is an integer number (3932590210850).

Almost surely, 2^{40448643755532} is an apocalyptic number.

It is an amenable number.

40448643755532 is an abundant number, since it is smaller than the sum of its proper divisors (53933521304868).

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

40448643755532 is a wasteful number, since it uses less digits than its factorization.

40448643755532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71296345 (or 71296343 counting only the distinct ones).

The product of its (nonzero) digits is 193536000, while the sum is 60.

The spelling of 40448643755532 in words is "forty trillion, four hundred forty-eight billion, six hundred forty-three million, seven hundred fifty-five thousand, five hundred thirty-two".