40803968993 has 4 divisors (see below), whose sum is σ = 41207968788. Its totient is φ = 40399969200.

The previous prime is 40803968987. The next prime is 40803969029. The reversal of 40803968993 is 39986930804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31304932624 + 9499036369 = 176932^2 + 97463^2 .

It is a cyclic number.

It is not a de Polignac number, because 40803968993 - 2³⁰ = 39730227169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40803968923) 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, 201999746 + ... + 201999947.

It is an arithmetic number, because the mean of its divisors is an integer number (10301992197).

Almost surely, 2^40803968993 is an apocalyptic number.

It is an amenable number.

40803968993 is a deficient number, since it is larger than the sum of its proper divisors (403999795).

40803968993 is a wasteful number, since it uses less digits than its factorization.

40803968993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403999794.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 40803968993 in words is "forty billion, eight hundred three million, nine hundred sixty-eight thousand, nine hundred ninety-three".