10403999989 has 2 divisors, whose sum is σ = 10403999990. Its totient is φ = 10403999988.

The previous prime is 10403999971. The next prime is 10404000049. The reversal of 10403999989 is 98999930401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10285407889 + 118592100 = 101417^2 + 10890^2 .

It is an emirp because it is prime and its reverse (98999930401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10403999989 - 2²⁵ = 10370445557 is a prime.

It is a super-2 number, since 2×10403999989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10403999909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201999994 + 5201999995.

It is an arithmetic number, because the mean of its divisors is an integer number (5201999995).

Almost surely, 2^10403999989 is an apocalyptic number.

It is an amenable number.

10403999989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10403999989 is an equidigital number, since it uses as much as digits as its factorization.

10403999989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5668704, while the sum is 61.

The spelling of 10403999989 in words is "ten billion, four hundred three million, nine hundred ninety-nine thousand, nine hundred eighty-nine".