40050081792 has 540 divisors, whose sum is σ = 141020255376. Its totient is φ = 10899947520.

The previous prime is 40050081739. The next prime is 40050081809. The reversal of 40050081792 is 29718005004.

40050081792 is a `hidden beast` number, since 4 + 0 + 0 + 500 + 81 + 79 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 166182792 + ... + 166183032.

Almost surely, 2^40050081792 is an apocalyptic number.

40050081792 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 40050081792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70510127688).

40050081792 is an abundant number, since it is smaller than the sum of its proper divisors (100970173584).

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

40050081792 is a wasteful number, since it uses less digits than its factorization.

40050081792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

Adding to 40050081792 its reverse (29718005004), we get a palindrome (69768086796).

The spelling of 40050081792 in words is "forty billion, fifty million, eighty-one thousand, seven hundred ninety-two".