40797333238640 has 40 divisors (see below), whose sum is σ = 103476872489328. Its totient is φ = 14835393904640.

The previous prime is 40797333238639. The next prime is 40797333238643. The reversal of 40797333238640 is 4683233379704.

40797333238640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 40797333238640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40797333238643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23180302097 + ... + 23180303856.

Almost surely, 2^{40797333238640} is an apocalyptic number.

40797333238640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40797333238640 is an abundant number, since it is smaller than the sum of its proper divisors (62679539250688).

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

40797333238640 is a wasteful number, since it uses less digits than its factorization.

40797333238640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46360605977 (or 46360605971 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 59.

The spelling of 40797333238640 in words is "forty trillion, seven hundred ninety-seven billion, three hundred thirty-three million, two hundred thirty-eight thousand, six hundred forty".