9988082057 has 4 divisors (see below), whose sum is σ = 9988494336. Its totient is φ = 9987669780.

The previous prime is 9988082021. The next prime is 9988082149. The reversal of 9988082057 is 7502808899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9988082057 - 2⁸ = 9988081801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9988081993 and 9988082011.

It is not an unprimeable number, because it can be changed into a prime (9988082257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167369 + ... + 219062.

It is an arithmetic number, because the mean of its divisors is an integer number (2497123584).

Almost surely, 2^9988082057 is an apocalyptic number.

It is an amenable number.

9988082057 is a deficient number, since it is larger than the sum of its proper divisors (412279).

9988082057 is a wasteful number, since it uses less digits than its factorization.

9988082057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412278.

The product of its (nonzero) digits is 2903040, while the sum is 56.

The square root of 9988082057 is about 99940.3925197415. The cubic root of 9988082057 is about 2153.5784688008.

The spelling of 9988082057 in words is "nine billion, nine hundred eighty-eight million, eighty-two thousand, fifty-seven".