7109748409 has 8 divisors (see below), whose sum is σ = 7124757192. Its totient is φ = 7094757120.

The previous prime is 7109748397. The next prime is 7109748461. The reversal of 7109748409 is 9048479017.

It can be written as a sum of positive squares in 4 ways, for example, as 1025280400 + 6084468009 = 32020^2 + 78003^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7109748409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7103748409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065327 + ... + 1071979.

It is an arithmetic number, because the mean of its divisors is an integer number (890594649).

Almost surely, 2^7109748409 is an apocalyptic number.

It is an amenable number.

7109748409 is a deficient number, since it is larger than the sum of its proper divisors (15008783).

7109748409 is a wasteful number, since it uses less digits than its factorization.

7109748409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8747.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 7109748409 is about 84319.3240544539. The cubic root of 7109748409 is about 1922.8765844460.

The spelling of 7109748409 in words is "seven billion, one hundred nine million, seven hundred forty-eight thousand, four hundred nine".