10215402049 has 2 divisors, whose sum is σ = 10215402050. Its totient is φ = 10215402048.

The previous prime is 10215402023. The next prime is 10215402103. The reversal of 10215402049 is 94020451201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9732809025 + 482593024 = 98655^2 + 21968^2 .

It is a cyclic number.

It is not a de Polignac number, because 10215402049 - 2⁷ = 10215401921 is a prime.

It is not a weakly prime, because it can be changed into another prime (10215402949) 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 as a sum of consecutive naturals, namely, 5107701024 + 5107701025.

It is an arithmetic number, because the mean of its divisors is an integer number (5107701025).

Almost surely, 2^10215402049 is an apocalyptic number.

It is an amenable number.

10215402049 is a deficient number, since it is larger than the sum of its proper divisors (1).

10215402049 is an equidigital number, since it uses as much as digits as its factorization.

10215402049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 10215402049 in words is "ten billion, two hundred fifteen million, four hundred two thousand, forty-nine".