40923387458820 has 72 divisors (see below), whose sum is σ = 124141574171160. Its totient is φ = 10912261662720.

The previous prime is 40923387458669. The next prime is 40923387458977. The reversal of 40923387458820 is 2885478332904.

40923387458820 is a `hidden beast` number, since 4 + 0 + 9 + 23 + 3 + 8 + 7 + 4 + 588 + 20 = 666.

40923387458820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5251173903936 + 35672213554884 = 2291544^2 + 5972622^2 .

It is a super-2 number, since 2×40923387458820² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3610221 + ... + 9740660.

It is an arithmetic number, because the mean of its divisors is an integer number (1724188530155).

Almost surely, 2^{40923387458820} is an apocalyptic number.

It is an amenable number.

40923387458820 is an abundant number, since it is smaller than the sum of its proper divisors (83218186712340).

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

40923387458820 is a wasteful number, since it uses less digits than its factorization.

40923387458820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13367925 (or 13367920 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 63.

The spelling of 40923387458820 in words is "forty trillion, nine hundred twenty-three billion, three hundred eighty-seven million, four hundred fifty-eight thousand, eight hundred twenty".