7928049211 has 2 divisors, whose sum is σ = 7928049212. Its totient is φ = 7928049210.

The previous prime is 7928049209. The next prime is 7928049221. The reversal of 7928049211 is 1129408297.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7928049211 - 2¹ = 7928049209 is a prime.

Together with 7928049209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7928049221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3964024605 + 3964024606.

It is an arithmetic number, because the mean of its divisors is an integer number (3964024606).

Almost surely, 2^7928049211 is an apocalyptic number.

7928049211 is a deficient number, since it is larger than the sum of its proper divisors (1).

7928049211 is an equidigital number, since it uses as much as digits as its factorization.

7928049211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 7928049211 is about 89039.5935019921. The cubic root of 7928049211 is about 1993.9860351561.

The spelling of 7928049211 in words is "seven billion, nine hundred twenty-eight million, forty-nine thousand, two hundred eleven".