40827138920 has 64 divisors (see below), whose sum is σ = 93441237120. Its totient is φ = 16051942144.

The previous prime is 40827138893. The next prime is 40827138923. The reversal of 40827138920 is 2983172804.

It is not an unprimeable number, because it can be changed into a prime (40827138923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622829 + ... + 685251.

It is an arithmetic number, because the mean of its divisors is an integer number (1460019330).

Almost surely, 2^40827138920 is an apocalyptic number.

40827138920 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 40827138920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46720618560).

40827138920 is an abundant number, since it is smaller than the sum of its proper divisors (52614098200).

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

40827138920 is a wasteful number, since it uses less digits than its factorization.

40827138920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62714 (or 62710 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 40827138920 in words is "forty billion, eight hundred twenty-seven million, one hundred thirty-eight thousand, nine hundred twenty".