40188743832 has 32 divisors (see below), whose sum is σ = 102609561600. Its totient is φ = 13111221024.

The previous prime is 40188743831. The next prime is 40188743843. The reversal of 40188743832 is 23834788104.

40188743832 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 not an unprimeable number, because it can be changed into a prime (40188743831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17813032 + ... + 17815287.

It is an arithmetic number, because the mean of its divisors is an integer number (3206548800).

Almost surely, 2^40188743832 is an apocalyptic number.

It is an amenable number.

40188743832 is an abundant number, since it is smaller than the sum of its proper divisors (62420817768).

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

40188743832 is a wasteful number, since it uses less digits than its factorization.

40188743832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35628375 (or 35628371 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 40188743832 in words is "forty billion, one hundred eighty-eight million, seven hundred forty-three thousand, eight hundred thirty-two".