9001428611 has 4 divisors (see below), whose sum is σ = 10287346992. Its totient is φ = 7715510232.

The previous prime is 9001428577. The next prime is 9001428641. The reversal of 9001428611 is 1168241009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1168241009 = 13 ⋅89864693.

It is a cyclic number.

It is not a de Polignac number, because 9001428611 - 2⁶ = 9001428547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9001428641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642959180 + ... + 642959193.

It is an arithmetic number, because the mean of its divisors is an integer number (2571836748).

Almost surely, 2^9001428611 is an apocalyptic number.

9001428611 is a deficient number, since it is larger than the sum of its proper divisors (1285918381).

9001428611 is a wasteful number, since it uses less digits than its factorization.

9001428611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285918380.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 9001428611 is about 94875.8589473634. The cubic root of 9001428611 is about 2080.1938776227.

The spelling of 9001428611 in words is "nine billion, one million, four hundred twenty-eight thousand, six hundred eleven".