9910815752 has 16 divisors (see below), whose sum is σ = 18897742800. Its totient is φ = 4871417680.

The previous prime is 9910815749. The next prime is 9910815757. The reversal of 9910815752 is 2575180199.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9910815697 and 9910815706.

It is not an unprimeable number, because it can be changed into a prime (9910815757) 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, 10498274 + ... + 10499217.

It is an arithmetic number, because the mean of its divisors is an integer number (1181108925).

Almost surely, 2^9910815752 is an apocalyptic number.

It is an amenable number.

9910815752 is a deficient number, since it is larger than the sum of its proper divisors (8986927048).

9910815752 is a wasteful number, since it uses less digits than its factorization.

9910815752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20997556 (or 20997552 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 47.

The square root of 9910815752 is about 99553.0800728938. The cubic root of 9910815752 is about 2148.0108338653.

The spelling of 9910815752 in words is "nine billion, nine hundred ten million, eight hundred fifteen thousand, seven hundred fifty-two".