40039869888 has 224 divisors, whose sum is σ = 125556264000. Its totient is φ = 12468584448.

The previous prime is 40039869869. The next prime is 40039869923. The reversal of 40039869888 is 88896893004.

40039869888 is a `hidden beast` number, since 400 + 3 + 98 + 69 + 8 + 88 = 666.

40039869888 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4019538 + ... + 4029486.

Almost surely, 2^40039869888 is an apocalyptic number.

40039869888 is a gapful number since it is divisible by the number (48) 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 40039869888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62778132000).

40039869888 is an abundant number, since it is smaller than the sum of its proper divisors (85516394112).

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

40039869888 is a wasteful number, since it uses less digits than its factorization.

40039869888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10124 (or 10108 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 40039869888 in words is "forty billion, thirty-nine million, eight hundred sixty-nine thousand, eight hundred eighty-eight".