40636381180 has 24 divisors (see below), whose sum is σ = 85340187072. Its totient is φ = 16253831232.

The previous prime is 40636381147. The next prime is 40636381189. The reversal of 40636381180 is 8118363604.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40636381189) 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, 869694 + ... + 915226.

It is an arithmetic number, because the mean of its divisors is an integer number (3555841128).

Almost surely, 2^40636381180 is an apocalyptic number.

It is an amenable number.

40636381180 is an abundant number, since it is smaller than the sum of its proper divisors (44703805892).

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

40636381180 is a wasteful number, since it uses less digits than its factorization.

40636381180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90165 (or 90163 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 40636381180 in words is "forty billion, six hundred thirty-six million, three hundred eighty-one thousand, one hundred eighty".