10363494781 has 4 divisors (see below), whose sum is σ = 10720856700. Its totient is φ = 10006132864.

The previous prime is 10363494709. The next prime is 10363494829. The reversal of 10363494781 is 18749436301.

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 6685678756 + 3677816025 = 81766^2 + 60645^2 .

It is a cyclic number.

It is not a de Polignac number, because 10363494781 - 2¹⁵ = 10363462013 is a prime.

It is a super-3 number, since 3×10363494781³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10363494181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178680916 + ... + 178680973.

It is an arithmetic number, because the mean of its divisors is an integer number (2680214175).

Almost surely, 2^10363494781 is an apocalyptic number.

It is an amenable number.

10363494781 is a deficient number, since it is larger than the sum of its proper divisors (357361919).

10363494781 is an equidigital number, since it uses as much as digits as its factorization.

10363494781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357361918.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 10363494781 in words is "ten billion, three hundred sixty-three million, four hundred ninety-four thousand, seven hundred eighty-one".