1010040399989 has 2 divisors, whose sum is σ = 1010040399990. Its totient is φ = 1010040399988.

The previous prime is 1010040399917. The next prime is 1010040400051. The reversal of 1010040399989 is 9899930400101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927064716964 + 82975683025 = 962842^2 + 288055^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010040399989 - 2²⁸ = 1009771964533 is a prime.

It is a super-2 number, since 2×1010040399989² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1010040399989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010040399089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505020199994 + 505020199995.

It is an arithmetic number, because the mean of its divisors is an integer number (505020199995).

Almost surely, 2^{1010040399989} is an apocalyptic number.

It is an amenable number.

1010040399989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010040399989 is an equidigital number, since it uses as much as digits as its factorization.

1010040399989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 1010040399989 in words is "one trillion, ten billion, forty million, three hundred ninety-nine thousand, nine hundred eighty-nine".