8130357428 has 12 divisors (see below), whose sum is σ = 14461373892. Its totient is φ = 3998536320.

The previous prime is 8130357421. The next prime is 8130357451. The reversal of 8130357428 is 8247530318.

It can be written as a sum of positive squares in 2 ways, for example, as 137639824 + 7992717604 = 11732^2 + 89402^2 .

It is a super-2 number, since 2×8130357428² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8130357421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16660325 + ... + 16660812.

It is an arithmetic number, because the mean of its divisors is an integer number (1205114491).

Almost surely, 2^8130357428 is an apocalyptic number.

It is an amenable number.

8130357428 is a deficient number, since it is larger than the sum of its proper divisors (6331016464).

8130357428 is a wasteful number, since it uses less digits than its factorization.

8130357428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33321202 (or 33321200 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 8130357428 is about 90168.4946530660. The cubic root of 8130357428 is about 2010.8046437255.

The spelling of 8130357428 in words is "eight billion, one hundred thirty million, three hundred fifty-seven thousand, four hundred twenty-eight".