40547818752 has 288 divisors, whose sum is σ = 126994210560. Its totient is φ = 11245977600.

The previous prime is 40547818723. The next prime is 40547818757. The reversal of 40547818752 is 25781874504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40547818695 and 40547818704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40547818757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28777024 + ... + 28778432.

It is an arithmetic number, because the mean of its divisors is an integer number (440952120).

Almost surely, 2^40547818752 is an apocalyptic number.

40547818752 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40547818752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63497105280).

40547818752 is an abundant number, since it is smaller than the sum of its proper divisors (86446391808).

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

40547818752 is a wasteful number, since it uses less digits than its factorization.

40547818752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 2508800, while the sum is 51.

The spelling of 40547818752 in words is "forty billion, five hundred forty-seven million, eight hundred eighteen thousand, seven hundred fifty-two".