40738593667 has 4 divisors (see below), whose sum is σ = 40827737656. Its totient is φ = 40649449680.

The previous prime is 40738593659. The next prime is 40738593691. The reversal of 40738593667 is 76639583704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40738593667 - 2³ = 40738593659 is a prime.

It is a super-3 number, since 3×40738593667³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40738563667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44571309 + ... + 44572222.

It is an arithmetic number, because the mean of its divisors is an integer number (10206934414).

Almost surely, 2^40738593667 is an apocalyptic number.

40738593667 is a deficient number, since it is larger than the sum of its proper divisors (89143989).

40738593667 is an equidigital number, since it uses as much as digits as its factorization.

40738593667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89143988.

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 40738593667 in words is "forty billion, seven hundred thirty-eight million, five hundred ninety-three thousand, six hundred sixty-seven".