40441080991 has 2 divisors, whose sum is σ = 40441080992. Its totient is φ = 40441080990.

The previous prime is 40441080983. The next prime is 40441081007. The reversal of 40441080991 is 19908014404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40441080991 - 2³ = 40441080983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40441080961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20220540495 + 20220540496.

It is an arithmetic number, because the mean of its divisors is an integer number (20220540496).

Almost surely, 2^40441080991 is an apocalyptic number.

40441080991 is a deficient number, since it is larger than the sum of its proper divisors (1).

40441080991 is an equidigital number, since it uses as much as digits as its factorization.

40441080991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 40441080991 in words is "forty billion, four hundred forty-one million, eighty thousand, nine hundred ninety-one".