7749324947 has 8 divisors (see below), whose sum is σ = 9537630816. Its totient is φ = 6131333952.

The previous prime is 7749324923. The next prime is 7749324953. The reversal of 7749324947 is 7494239477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7749324947 - 2⁸ = 7749324691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7749324892 and 7749324901.

It is not an unprimeable number, because it can be changed into a prime (7749324917) 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 7 ways as a sum of consecutive naturals, for example, 42578618 + ... + 42578799.

It is an arithmetic number, because the mean of its divisors is an integer number (1192203852).

Almost surely, 2^7749324947 is an apocalyptic number.

7749324947 is a deficient number, since it is larger than the sum of its proper divisors (1788305869).

7749324947 is a wasteful number, since it uses less digits than its factorization.

7749324947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85157437.

The product of its digits is 10668672, while the sum is 56.

The square root of 7749324947 is about 88030.2501814007. The cubic root of 7749324947 is about 1978.8883453954. Note that the first 3 decimals are identical.

The spelling of 7749324947 in words is "seven billion, seven hundred forty-nine million, three hundred twenty-four thousand, nine hundred forty-seven".