10491900329 has 2 divisors, whose sum is σ = 10491900330. Its totient is φ = 10491900328.

The previous prime is 10491900313. The next prime is 10491900359. The reversal of 10491900329 is 92300919401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10393394704 + 98505625 = 101948^2 + 9925^2 .

It is a cyclic number.

It is not a de Polignac number, because 10491900329 - 2⁴ = 10491900313 is a prime.

It is a super-2 number, since 2×10491900329² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10491900292 and 10491900301.

It is not a weakly prime, because it can be changed into another prime (10491900359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245950164 + 5245950165.

It is an arithmetic number, because the mean of its divisors is an integer number (5245950165).

Almost surely, 2^10491900329 is an apocalyptic number.

It is an amenable number.

10491900329 is a deficient number, since it is larger than the sum of its proper divisors (1).

10491900329 is an equidigital number, since it uses as much as digits as its factorization.

10491900329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 10491900329 in words is "ten billion, four hundred ninety-one million, nine hundred thousand, three hundred twenty-nine".