7485191189 has 64 divisors (see below), whose sum is σ = 9610444800. Its totient is φ = 5685458688.

The previous prime is 7485191183. The next prime is 7485191191. The reversal of 7485191189 is 9811915847.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-7485191189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7485191189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7485191183) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28460672 + ... + 28460934.

It is an arithmetic number, because the mean of its divisors is an integer number (150163200).

Almost surely, 2^7485191189 is an apocalyptic number.

It is an amenable number.

7485191189 is a deficient number, since it is larger than the sum of its proper divisors (2125253611).

7485191189 is a wasteful number, since it uses less digits than its factorization.

7485191189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its digits is 725760, while the sum is 53.

The square root of 7485191189 is about 86516.9994220789. Note that the first 3 decimals coincide. The cubic root of 7485191189 is about 1956.1446487186.

The spelling of 7485191189 in words is "seven billion, four hundred eighty-five million, one hundred ninety-one thousand, one hundred eighty-nine".