10451381849 has 2 divisors, whose sum is σ = 10451381850. Its totient is φ = 10451381848.

The previous prime is 10451381803. The next prime is 10451381911. The reversal of 10451381849 is 94818315401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10451381824 + 25 = 102232^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 10451381849 - 2²⁰ = 10450333273 is a prime.

It is not a weakly prime, because it can be changed into another prime (10451383849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5225690924 + 5225690925.

It is an arithmetic number, because the mean of its divisors is an integer number (5225690925).

Almost surely, 2^10451381849 is an apocalyptic number.

It is an amenable number.

10451381849 is a deficient number, since it is larger than the sum of its proper divisors (1).

10451381849 is an equidigital number, since it uses as much as digits as its factorization.

10451381849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 10451381849 in words is "ten billion, four hundred fifty-one million, three hundred eighty-one thousand, eight hundred forty-nine".