10490647991 has 2 divisors, whose sum is σ = 10490647992. Its totient is φ = 10490647990.

The previous prime is 10490647931. The next prime is 10490648023. The reversal of 10490647991 is 19974609401.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19974609401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10490647991 - 2¹⁰ = 10490646967 is a prime.

It is a super-2 number, since 2×10490647991² (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 (10490647931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245323995 + 5245323996.

It is an arithmetic number, because the mean of its divisors is an integer number (5245323996).

Almost surely, 2^10490647991 is an apocalyptic number.

10490647991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10490647991 is an equidigital number, since it uses as much as digits as its factorization.

10490647991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 10490647991 in words is "ten billion, four hundred ninety million, six hundred forty-seven thousand, nine hundred ninety-one".