40203253442464 has 96 divisors (see below), whose sum is σ = 92013203802240. Its totient is φ = 16933751181312.

The previous prime is 40203253442441. The next prime is 40203253442477. The reversal of 40203253442464 is 46424435230204.

It is a self number, because there is not a number n which added to its sum of digits gives 40203253442464.

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 15 ways as a sum of consecutive naturals, for example, 53455332 + ... + 54202204.

It is an arithmetic number, because the mean of its divisors is an integer number (958470872940).

Almost surely, 2^{40203253442464} 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 40203253442464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46006601901120).

40203253442464 is an abundant number, since it is smaller than the sum of its proper divisors (51809950359776).

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

40203253442464 is a wasteful number, since it uses less digits than its factorization.

40203253442464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751022 (or 751014 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 43.

Adding to 40203253442464 its reverse (46424435230204), we get a palindrome (86627688672668).

The spelling of 40203253442464 in words is "forty trillion, two hundred three billion, two hundred fifty-three million, four hundred forty-two thousand, four hundred sixty-four".