900990098969 has 2 divisors, whose sum is σ = 900990098970. Its totient is φ = 900990098968.

The previous prime is 900990098941. The next prime is 900990099011. The reversal of 900990098969 is 969890099009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711978188944 + 189011910025 = 843788^2 + 434755^2 .

It is a cyclic number.

It is not a de Polignac number, because 900990098969 - 2³⁶ = 832270622233 is a prime.

It is a super-2 number, since 2×900990098969² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 900990098899 and 900990098908.

It is not a weakly prime, because it can be changed into another prime (900990028969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450495049484 + 450495049485.

It is an arithmetic number, because the mean of its divisors is an integer number (450495049485).

Almost surely, 2^900990098969 is an apocalyptic number.

It is an amenable number.

900990098969 is a deficient number, since it is larger than the sum of its proper divisors (1).

900990098969 is an equidigital number, since it uses as much as digits as its factorization.

900990098969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25509168, while the sum is 68.

The spelling of 900990098969 in words is "nine hundred billion, nine hundred ninety million, ninety-eight thousand, nine hundred sixty-nine".