7936428650 has 12 divisors (see below), whose sum is σ = 14761757382. Its totient is φ = 3174571440.

The previous prime is 7936428641. The next prime is 7936428739. The reversal of 7936428650 is 568246397.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3507126841 + 4429301809 = 59221^2 + 66553^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 158728573 = 7936428650 / (7 + 9 + 3 + 6 + 4 + 2 + 8 + 6 + 5 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79364237 + ... + 79364336.

Almost surely, 2^7936428650 is an apocalyptic number.

7936428650 is a deficient number, since it is larger than the sum of its proper divisors (6825328732).

7936428650 is a wasteful number, since it uses less digits than its factorization.

7936428650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158728585 (or 158728580 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 7936428650 is about 89086.6356419413. The cubic root of 7936428650 is about 1994.6882928725.

The spelling of 7936428650 in words is "seven billion, nine hundred thirty-six million, four hundred twenty-eight thousand, six hundred fifty".