7128467971 has 2 divisors, whose sum is σ = 7128467972. Its totient is φ = 7128467970.

The previous prime is 7128467959. The next prime is 7128467977. The reversal of 7128467971 is 1797648217.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7128467971 - 2²¹ = 7126370819 is a prime.

It is a super-2 number, since 2×7128467971² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7128467977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3564233985 + 3564233986.

It is an arithmetic number, because the mean of its divisors is an integer number (3564233986).

Almost surely, 2^7128467971 is an apocalyptic number.

7128467971 is a deficient number, since it is larger than the sum of its proper divisors (1).

7128467971 is an equidigital number, since it uses as much as digits as its factorization.

7128467971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 52.

The square root of 7128467971 is about 84430.2550689029. The cubic root of 7128467971 is about 1924.5627136036.

The spelling of 7128467971 in words is "seven billion, one hundred twenty-eight million, four hundred sixty-seven thousand, nine hundred seventy-one".