10254696821 has 2 divisors, whose sum is σ = 10254696822. Its totient is φ = 10254696820.

The previous prime is 10254696791. The next prime is 10254696869. The reversal of 10254696821 is 12869645201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7980742225 + 2273954596 = 89335^2 + 47686^2 .

It is a cyclic number.

It is not a de Polignac number, because 10254696821 - 2³⁰ = 9180954997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10254692821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5127348410 + 5127348411.

It is an arithmetic number, because the mean of its divisors is an integer number (5127348411).

Almost surely, 2^10254696821 is an apocalyptic number.

It is an amenable number.

10254696821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10254696821 is an equidigital number, since it uses as much as digits as its factorization.

10254696821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 10254696821 in words is "ten billion, two hundred fifty-four million, six hundred ninety-six thousand, eight hundred twenty-one".