40923308640 has 48 divisors (see below), whose sum is σ = 128908423728. Its totient is φ = 10912882176.

The previous prime is 40923308627. The next prime is 40923308663. The reversal of 40923308640 is 4680332904.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42627967 + ... + 42628926.

It is an arithmetic number, because the mean of its divisors is an integer number (2685592161).

Almost surely, 2^40923308640 is an apocalyptic number.

40923308640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40923308640 is an abundant number, since it is smaller than the sum of its proper divisors (87985115088).

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

40923308640 is a wasteful number, since it uses less digits than its factorization.

40923308640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85256911 (or 85256903 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 40923308640 in words is "forty billion, nine hundred twenty-three million, three hundred eight thousand, six hundred forty".