9875951249 has 2 divisors, whose sum is σ = 9875951250. Its totient is φ = 9875951248.

The previous prime is 9875951243. The next prime is 9875951303. The reversal of 9875951249 is 9421595789.

9875951249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8444691025 + 1431260224 = 91895^2 + 37832^2 .

It is a cyclic number.

It is not a de Polignac number, because 9875951249 - 2¹⁶ = 9875885713 is a prime.

It is not a weakly prime, because it can be changed into another prime (9875951243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4937975624 + 4937975625.

It is an arithmetic number, because the mean of its divisors is an integer number (4937975625).

Almost surely, 2^9875951249 is an apocalyptic number.

It is an amenable number.

9875951249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9875951249 is an equidigital number, since it uses as much as digits as its factorization.

9875951249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 59.

The square root of 9875951249 is about 99377.8207096533. The cubic root of 9875951249 is about 2145.4891000382.

The spelling of 9875951249 in words is "nine billion, eight hundred seventy-five million, nine hundred fifty-one thousand, two hundred forty-nine".