9988751259 has 12 divisors (see below), whose sum is σ = 15055509456. Its totient is φ = 6369638352.

The previous prime is 9988751221. The next prime is 9988751291. The reversal of 9988751259 is 9521578899.

It is not a de Polignac number, because 9988751259 - 2⁷ = 9988751131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9988751196 and 9988751205.

It is not an unprimeable number, because it can be changed into a prime (9988751209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24127212 + ... + 24127625.

It is an arithmetic number, because the mean of its divisors is an integer number (1254625788).

Almost surely, 2^9988751259 is an apocalyptic number.

9988751259 is a deficient number, since it is larger than the sum of its proper divisors (5066758197).

9988751259 is a wasteful number, since it uses less digits than its factorization.

9988751259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48254866 (or 48254863 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 63.

The square root of 9988751259 is about 99943.7404693260. The cubic root of 9988751259 is about 2153.6265643486.

The spelling of 9988751259 in words is "nine billion, nine hundred eighty-eight million, seven hundred fifty-one thousand, two hundred fifty-nine".