7449779447 has 8 divisors (see below), whose sum is σ = 8155752960. Its totient is φ = 6748592760.

The previous prime is 7449779437. The next prime is 7449779453.

7449779447 is nontrivially palindromic in base 10.

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 7449779447 - 2²⁶ = 7382670583 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 7449779447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7449779437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193447 + ... + 1199672.

It is an arithmetic number, because the mean of its divisors is an integer number (1019469120).

Almost surely, 2^7449779447 is an apocalyptic number.

7449779447 is a deficient number, since it is larger than the sum of its proper divisors (705973513).

7449779447 is a wasteful number, since it uses less digits than its factorization.

7449779447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393413.

The product of its digits is 49787136, while the sum is 62.

The square root of 7449779447 is about 86312.1048694793. The cubic root of 7449779447 is about 1953.0549919421.

The spelling of 7449779447 in words is "seven billion, four hundred forty-nine million, seven hundred seventy-nine thousand, four hundred forty-seven".