40380239993 has 4 divisors (see below), whose sum is σ = 40381010688. Its totient is φ = 40379469300.

The previous prime is 40380239971. The next prime is 40380240077. The reversal of 40380239993 is 39993208304.

40380239993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40380239993 - 2³⁰ = 39306498169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40380239903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300533 + ... + 413618.

It is an arithmetic number, because the mean of its divisors is an integer number (10095252672).

Almost surely, 2^40380239993 is an apocalyptic number.

It is an amenable number.

40380239993 is a deficient number, since it is larger than the sum of its proper divisors (770695).

40380239993 is an equidigital number, since it uses as much as digits as its factorization.

40380239993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770694.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 40380239993 in words is "forty billion, three hundred eighty million, two hundred thirty-nine thousand, nine hundred ninety-three".