40011439103989 has 2 divisors, whose sum is σ = 40011439103990. Its totient is φ = 40011439103988.

The previous prime is 40011439103941. The next prime is 40011439104137. The reversal of 40011439103989 is 98930193411004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27404785261764 + 12606653842225 = 5234958^2 + 3550585^2 .

It is a cyclic number.

It is not a de Polignac number, because 40011439103989 - 2¹¹ = 40011439101941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40011439103189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20005719551994 + 20005719551995.

It is an arithmetic number, because the mean of its divisors is an integer number (20005719551995).

Almost surely, 2^{40011439103989} is an apocalyptic number.

It is an amenable number.

40011439103989 is a deficient number, since it is larger than the sum of its proper divisors (1).

40011439103989 is an equidigital number, since it uses as much as digits as its factorization.

40011439103989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 40011439103989 in words is "forty trillion, eleven billion, four hundred thirty-nine million, one hundred three thousand, nine hundred eighty-nine".