40511787960 has 128 divisors (see below), whose sum is σ = 138999006720. Its totient is φ = 9253074432.

The previous prime is 40511787923. The next prime is 40511787989. The reversal of 40511787960 is 6978711504.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1181782 + ... + 1215578.

It is an arithmetic number, because the mean of its divisors is an integer number (1085929740).

Almost surely, 2^40511787960 is an apocalyptic number.

40511787960 is a gapful number since it is divisible by the number (40) 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 40511787960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69499503360).

40511787960 is an abundant number, since it is smaller than the sum of its proper divisors (98487218760).

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

40511787960 is a wasteful number, since it uses less digits than its factorization.

40511787960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35245 (or 35241 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 40511787960 in words is "forty billion, five hundred eleven million, seven hundred eighty-seven thousand, nine hundred sixty".