9938872751 has 2 divisors, whose sum is σ = 9938872752. Its totient is φ = 9938872750.

The previous prime is 9938872729. The next prime is 9938872777. The reversal of 9938872751 is 1572788399.

9938872751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9938872751 - 2¹⁸ = 9938610607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9938878751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4969436375 + 4969436376.

It is an arithmetic number, because the mean of its divisors is an integer number (4969436376).

Almost surely, 2^9938872751 is an apocalyptic number.

9938872751 is a deficient number, since it is larger than the sum of its proper divisors (1).

9938872751 is an equidigital number, since it uses as much as digits as its factorization.

9938872751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 59.

The square root of 9938872751 is about 99693.8952544237. The cubic root of 9938872751 is about 2150.0358927485.

The spelling of 9938872751 in words is "nine billion, nine hundred thirty-eight million, eight hundred seventy-two thousand, seven hundred fifty-one".