7194089640 has 64 divisors (see below), whose sum is σ = 21631147200. Its totient is φ = 1914079232.

The previous prime is 7194089633. The next prime is 7194089647. The reversal of 7194089640 is 469804917.

It is an interprime number because it is at equal distance from previous prime (7194089633) and next prime (7194089647).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7194089640.

It is not an unprimeable number, because it can be changed into a prime (7194089647) 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, 14505 + ... + 120824.

It is an arithmetic number, because the mean of its divisors is an integer number (337986675).

Almost surely, 2^7194089640 is an apocalyptic number.

It is an amenable number.

7194089640 is an abundant number, since it is smaller than the sum of its proper divisors (14437057560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7194089640 is a wasteful number, since it uses less digits than its factorization.

7194089640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135786 (or 135782 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 7194089640 is about 84817.9794619042. The cubic root of 7194089640 is about 1930.4502551392.

The spelling of 7194089640 in words is "seven billion, one hundred ninety-four million, eighty-nine thousand, six hundred forty".