40344136451454 has 64 divisors (see below), whose sum is σ = 89545671072000. Its totient is φ = 12014232733440.

The previous prime is 40344136451419. The next prime is 40344136451467. The reversal of 40344136451454 is 45415463144304.

40344136451454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9816492 + ... + 13306080.

It is an arithmetic number, because the mean of its divisors is an integer number (1399151110500).

Almost surely, 2^{40344136451454} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40344136451454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44772835536000).

40344136451454 is an abundant number, since it is smaller than the sum of its proper divisors (49201534620546).

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

40344136451454 is a wasteful number, since it uses less digits than its factorization.

40344136451454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492633.

The product of its (nonzero) digits is 5529600, while the sum is 48.

Adding to 40344136451454 its reverse (45415463144304), we get a palindrome (85759599595758).

The spelling of 40344136451454 in words is "forty trillion, three hundred forty-four billion, one hundred thirty-six million, four hundred fifty-one thousand, four hundred fifty-four".