8251730949 has 32 divisors (see below), whose sum is σ = 13760557056. Its totient is φ = 4273053120.

The previous prime is 8251730947. The next prime is 8251730959. The reversal of 8251730949 is 9490371528.

It is not a de Polignac number, because 8251730949 - 2¹ = 8251730947 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8251730898 and 8251730907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8251730947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16884 + ... + 129570.

It is an arithmetic number, because the mean of its divisors is an integer number (430017408).

Almost surely, 2^8251730949 is an apocalyptic number.

It is an amenable number.

8251730949 is a deficient number, since it is larger than the sum of its proper divisors (5508826107).

8251730949 is a wasteful number, since it uses less digits than its factorization.

8251730949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113025.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 8251730949 is about 90839.0386838170. The cubic root of 8251730949 is about 2020.7613172041.

The spelling of 8251730949 in words is "eight billion, two hundred fifty-one million, seven hundred thirty thousand, nine hundred forty-nine".