7444779249 has 16 divisors (see below), whose sum is σ = 10164528000. Its totient is φ = 4845050496.

The previous prime is 7444779203. The next prime is 7444779263. The reversal of 7444779249 is 9429774447.

It is not a de Polignac number, because 7444779249 - 2²⁸ = 7176343793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7444779269) 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, 86004 + ... + 149285.

It is an arithmetic number, because the mean of its divisors is an integer number (635283000).

Almost surely, 2^7444779249 is an apocalyptic number.

It is an amenable number.

7444779249 is a deficient number, since it is larger than the sum of its proper divisors (2719748751).

7444779249 is a wasteful number, since it uses less digits than its factorization.

7444779249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235544.

The product of its digits is 14224896, while the sum is 57.

The square root of 7444779249 is about 86283.1342094155. The cubic root of 7444779249 is about 1952.6179388538.

The spelling of 7444779249 in words is "seven billion, four hundred forty-four million, seven hundred seventy-nine thousand, two hundred forty-nine".