8077979449 has 8 divisors (see below), whose sum is σ = 8295252840. Its totient is φ = 7861670400.

The previous prime is 8077979417. The next prime is 8077979491. The reversal of 8077979449 is 9449797708.

It can be written as a sum of positive squares in 4 ways, for example, as 2174823225 + 5903156224 = 46635^2 + 76832^2 .

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 8077979449 - 2⁵ = 8077979417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8077979149) 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, 224092 + ... + 257629.

It is an arithmetic number, because the mean of its divisors is an integer number (1036906605).

Almost surely, 2^8077979449 is an apocalyptic number.

It is an amenable number.

8077979449 is a deficient number, since it is larger than the sum of its proper divisors (217273391).

8077979449 is a wasteful number, since it uses less digits than its factorization.

8077979449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482171.

The product of its (nonzero) digits is 32006016, while the sum is 64.

The square root of 8077979449 is about 89877.5803468251. The cubic root of 8077979449 is about 2006.4772871459.

The spelling of 8077979449 in words is "eight billion, seventy-seven million, nine hundred seventy-nine thousand, four hundred forty-nine".