7249109979 has 16 divisors (see below), whose sum is σ = 9898625792. Its totient is φ = 4716357408.

The previous prime is 7249109969. The next prime is 7249109983. The reversal of 7249109979 is 9799019427.

7249109979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7249109979 - 2⁷ = 7249109851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7249109909) 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, 133314 + ... + 179640.

It is an arithmetic number, because the mean of its divisors is an integer number (618664112).

Almost surely, 2^7249109979 is an apocalyptic number.

7249109979 is a deficient number, since it is larger than the sum of its proper divisors (2649515813).

7249109979 is a wasteful number, since it uses less digits than its factorization.

7249109979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47586.

The product of its (nonzero) digits is 2571912, while the sum is 57.

The square root of 7249109979 is about 85141.7052859525. The cubic root of 7249109979 is about 1935.3591179579.

The spelling of 7249109979 in words is "seven billion, two hundred forty-nine million, one hundred nine thousand, nine hundred seventy-nine".