11428428117 has 16 divisors (see below), whose sum is σ = 15930874368. Its totient is φ = 7273735920.

The previous prime is 11428428097. The next prime is 11428428119. The reversal of 11428428117 is 71182482411.

It is not a de Polignac number, because 11428428117 - 2¹⁶ = 11428362581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428428119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122259 + ... + 194432.

It is an arithmetic number, because the mean of its divisors is an integer number (995679648).

Almost surely, 2^11428428117 is an apocalyptic number.

It is an amenable number.

11428428117 is a deficient number, since it is larger than the sum of its proper divisors (4502446251).

11428428117 is a wasteful number, since it uses less digits than its factorization.

11428428117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317240.

The product of its digits is 28672, while the sum is 39.

The spelling of 11428428117 in words is "eleven billion, four hundred twenty-eight million, four hundred twenty-eight thousand, one hundred seventeen".