40898303993 has 2 divisors, whose sum is σ = 40898303994. Its totient is φ = 40898303992.

The previous prime is 40898303959. The next prime is 40898304011. The reversal of 40898303993 is 39930389804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40599429049 + 298874944 = 201493^2 + 17288^2 .

It is a cyclic number.

It is not a de Polignac number, because 40898303993 - 2²⁸ = 40629868537 is a prime.

It is not a weakly prime, because it can be changed into another prime (40898303893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20449151996 + 20449151997.

It is an arithmetic number, because the mean of its divisors is an integer number (20449151997).

Almost surely, 2^40898303993 is an apocalyptic number.

It is an amenable number.

40898303993 is a deficient number, since it is larger than the sum of its proper divisors (1).

40898303993 is an equidigital number, since it uses as much as digits as its factorization.

40898303993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 40898303993 in words is "forty billion, eight hundred ninety-eight million, three hundred three thousand, nine hundred ninety-three".