7307987149 has 16 divisors (see below), whose sum is σ = 8035236720. Its totient is φ = 6618378240.

The previous prime is 7307987143. The next prime is 7307987171. The reversal of 7307987149 is 9417897037.

It can be written as a sum of positive squares in 8 ways, for example, as 2866249 + 7305120900 = 1693^2 + 85470^2 .

It is a cyclic number.

It is not a de Polignac number, because 7307987149 - 2⁵ = 7307987117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7307987149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7307987143) 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 15 ways as a sum of consecutive naturals, for example, 20934 + ... + 122695.

It is an arithmetic number, because the mean of its divisors is an integer number (502202295).

Almost surely, 2^7307987149 is an apocalyptic number.

It is an amenable number.

7307987149 is a deficient number, since it is larger than the sum of its proper divisors (727249571).

7307987149 is a wasteful number, since it uses less digits than its factorization.

7307987149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143760.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The square root of 7307987149 is about 85486.7659290021. The cubic root of 7307987149 is about 1940.5846493993.

The spelling of 7307987149 in words is "seven billion, three hundred seven million, nine hundred eighty-seven thousand, one hundred forty-nine".