40518798336 has 264 divisors, whose sum is σ = 119570674080. Its totient is φ = 13212647424.

The previous prime is 40518798329. The next prime is 40518798367. The reversal of 40518798336 is 63389781504.

40518798336 is a `hidden beast` number, since 4 + 0 + 518 + 7 + 98 + 3 + 36 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154063741 + ... + 154064003.

It is an arithmetic number, because the mean of its divisors is an integer number (452919220).

Almost surely, 2^40518798336 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 40518798336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59785337040).

40518798336 is an abundant number, since it is smaller than the sum of its proper divisors (79051875744).

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

40518798336 is a wasteful number, since it uses less digits than its factorization.

40518798336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 40518798336 in words is "forty billion, five hundred eighteen million, seven hundred ninety-eight thousand, three hundred thirty-six".