403898159989 has 2 divisors, whose sum is σ = 403898159990. Its totient is φ = 403898159988.

The previous prime is 403898159969. The next prime is 403898160091. The reversal of 403898159989 is 989951898304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401744271889 + 2153888100 = 633833^2 + 46410^2 .

It is a cyclic number.

It is not a de Polignac number, because 403898159989 - 2²⁹ = 403361289077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403898159969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201949079994 + 201949079995.

It is an arithmetic number, because the mean of its divisors is an integer number (201949079995).

Almost surely, 2^403898159989 is an apocalyptic number.

It is an amenable number.

403898159989 is a deficient number, since it is larger than the sum of its proper divisors (1).

403898159989 is an equidigital number, since it uses as much as digits as its factorization.

403898159989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201553920, while the sum is 73.

The spelling of 403898159989 in words is "four hundred three billion, eight hundred ninety-eight million, one hundred fifty-nine thousand, nine hundred eighty-nine".