2449187779 has 4 divisors (see below), whose sum is σ = 2533642560. Its totient is φ = 2364733000.

The previous prime is 2449187749. The next prime is 2449187789. The reversal of 2449187779 is 9777819442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2449187779 - 2¹¹ = 2449185731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2449187749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42227347 + ... + 42227404.

It is an arithmetic number, because the mean of its divisors is an integer number (633410640).

Almost surely, 2^2449187779 is an apocalyptic number.

2449187779 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2449187779 is a deficient number, since it is larger than the sum of its proper divisors (84454781).

2449187779 is an equidigital number, since it uses as much as digits as its factorization.

2449187779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84454780.

The product of its digits is 7112448, while the sum is 58.

The square root of 2449187779 is about 49489.2693318461. The cubic root of 2449187779 is about 1347.9507599629.

The spelling of 2449187779 in words is "two billion, four hundred forty-nine million, one hundred eighty-seven thousand, seven hundred seventy-nine".