7194823649 has 12 divisors (see below), whose sum is σ = 7793232876. Its totient is φ = 6639340032.

The previous prime is 7194823639. The next prime is 7194823661. The reversal of 7194823649 is 9463284917.

It can be written as a sum of positive squares in 6 ways, for example, as 337824400 + 6856999249 = 18380^2 + 82807^2 .

It is not a de Polignac number, because 7194823649 - 2¹⁶ = 7194758113 is a prime.

It is a Smith number, since the sum of its digits (53) 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 7194823649.

It is not an unprimeable number, because it can be changed into a prime (7194823639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090649 + ... + 1097225.

It is an arithmetic number, because the mean of its divisors is an integer number (649436073).

Almost surely, 2^7194823649 is an apocalyptic number.

It is an amenable number.

7194823649 is a deficient number, since it is larger than the sum of its proper divisors (598409227).

7194823649 is a wasteful number, since it uses less digits than its factorization.

7194823649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13076 (or 13063 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 7194823649 is about 84822.3063173833. The cubic root of 7194823649 is about 1930.5159071649.

The spelling of 7194823649 in words is "seven billion, one hundred ninety-four million, eight hundred twenty-three thousand, six hundred forty-nine".