9994826057 has 4 divisors (see below), whose sum is σ = 10002171156. Its totient is φ = 9987480960.

The previous prime is 9994826047. The next prime is 9994826069. The reversal of 9994826057 is 7506284999.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2794285321 + 7200540736 = 52861^2 + 84856^2 .

It is a cyclic number.

It is not a de Polignac number, because 9994826057 - 2⁴ = 9994826041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9994825987 and 9994826005.

It is not an unprimeable number, because it can be changed into a prime (9994826047) 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, 3670508 + ... + 3673229.

It is an arithmetic number, because the mean of its divisors is an integer number (2500542789).

Almost surely, 2^9994826057 is an apocalyptic number.

It is an amenable number.

9994826057 is a deficient number, since it is larger than the sum of its proper divisors (7345099).

9994826057 is a wasteful number, since it uses less digits than its factorization.

9994826057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345098.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The square root of 9994826057 is about 99974.1269379233. The cubic root of 9994826057 is about 2154.0630618556.

The spelling of 9994826057 in words is "nine billion, nine hundred ninety-four million, eight hundred twenty-six thousand, fifty-seven".