7128012801 has 24 divisors (see below), whose sum is σ = 11906134464. Its totient is φ = 3759829920.

The previous prime is 7128012799. The next prime is 7128012821. The reversal of 7128012801 is 1082108217.

It is a happy number.

It is not a de Polignac number, because 7128012801 - 2¹ = 7128012799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7128012821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1863085 + ... + 1866906.

It is an arithmetic number, because the mean of its divisors is an integer number (496088936).

Almost surely, 2^7128012801 is an apocalyptic number.

It is an amenable number.

7128012801 is a deficient number, since it is larger than the sum of its proper divisors (4778121663).

7128012801 is a wasteful number, since it uses less digits than its factorization.

7128012801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730021 (or 3730014 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 7128012801 is about 84427.5594874091. The cubic root of 7128012801 is about 1924.5217500632.

The spelling of 7128012801 in words is "seven billion, one hundred twenty-eight million, twelve thousand, eight hundred one".