9995243857 has 8 divisors (see below), whose sum is σ = 10590086016. Its totient is φ = 9401166912.

The previous prime is 9995243723. The next prime is 9995243953. The reversal of 9995243857 is 7583425999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9995243857 - 2²⁷ = 9861026129 is a prime.

It is a super-5 number, since 5×9995243857⁵ (a number of 51 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9995243795 and 9995243804.

It is not an unprimeable number, because it can be changed into a prime (9995243057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164293 + ... + 216754.

It is an arithmetic number, because the mean of its divisors is an integer number (1323760752).

Almost surely, 2^9995243857 is an apocalyptic number.

It is an amenable number.

9995243857 is a deficient number, since it is larger than the sum of its proper divisors (594842159).

9995243857 is a wasteful number, since it uses less digits than its factorization.

9995243857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382607.

The product of its digits is 24494400, while the sum is 61.

The square root of 9995243857 is about 99976.2164567153. The cubic root of 9995243857 is about 2154.0930758850.

The spelling of 9995243857 in words is "nine billion, nine hundred ninety-five million, two hundred forty-three thousand, eight hundred fifty-seven".