10140326491 has 2 divisors, whose sum is σ = 10140326492. Its totient is φ = 10140326490.

The previous prime is 10140326459. The next prime is 10140326507. The reversal of 10140326491 is 19462304101.

10140326491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10140326491 - 2⁵ = 10140326459 is a prime.

It is not a weakly prime, because it can be changed into another prime (10140326291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070163245 + 5070163246.

It is an arithmetic number, because the mean of its divisors is an integer number (5070163246).

Almost surely, 2^10140326491 is an apocalyptic number.

10140326491 is a deficient number, since it is larger than the sum of its proper divisors (1).

10140326491 is an equidigital number, since it uses as much as digits as its factorization.

10140326491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 10140326491 in words is "ten billion, one hundred forty million, three hundred twenty-six thousand, four hundred ninety-one".