9988858042 has 4 divisors (see below), whose sum is σ = 14983287066. Its totient is φ = 4994429020.

The previous prime is 9988858001. The next prime is 9988858051. The reversal of 9988858042 is 2408588899.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6738603921 + 3250254121 = 82089^2 + 57011^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497214509 + ... + 2497214512.

Almost surely, 2^9988858042 is an apocalyptic number.

9988858042 is a deficient number, since it is larger than the sum of its proper divisors (4994429024).

9988858042 is a wasteful number, since it uses less digits than its factorization.

9988858042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994429023.

The product of its (nonzero) digits is 13271040, while the sum is 61.

The square root of 9988858042 is about 99944.2746834455. The cubic root of 9988858042 is about 2153.6342386440.

The spelling of 9988858042 in words is "nine billion, nine hundred eighty-eight million, eight hundred fifty-eight thousand, forty-two".