10145040649 has 4 divisors (see below), whose sum is σ = 10741807764. Its totient is φ = 9548273536.

The previous prime is 10145040641. The next prime is 10145040679. The reversal of 10145040649 is 94604054101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3094919424 + 7050121225 = 55632^2 + 83965^2 .

It is a cyclic number.

It is not a de Polignac number, because 10145040649 - 2³ = 10145040641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10145040641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298383532 + ... + 298383565.

It is an arithmetic number, because the mean of its divisors is an integer number (2685451941).

Almost surely, 2^10145040649 is an apocalyptic number.

It is an amenable number.

10145040649 is a deficient number, since it is larger than the sum of its proper divisors (596767115).

10145040649 is an equidigital number, since it uses as much as digits as its factorization.

10145040649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596767114.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 10145040649 in words is "ten billion, one hundred forty-five million, forty thousand, six hundred forty-nine".