8404048849 has 6 divisors (see below), whose sum is σ = 9776138514. Its totient is φ = 7203470400.

The previous prime is 8404048847. The next prime is 8404048907. The reversal of 8404048849 is 9488404048.

It can be written as a sum of positive squares in only one way, i.e., 6301184400 + 2102864449 = 79380^2 + 45857^2 .

It is not a de Polignac number, because 8404048849 - 2¹ = 8404048847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 171511201 = 8404048849 / (8 + 4 + 0 + 4 + 0 + 4 + 8 + 8 + 4 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8404048847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85755552 + ... + 85755649.

It is an arithmetic number, because the mean of its divisors is an integer number (1629356419).

Almost surely, 2^8404048849 is an apocalyptic number.

It is an amenable number.

8404048849 is a deficient number, since it is larger than the sum of its proper divisors (1372089665).

8404048849 is a wasteful number, since it uses less digits than its factorization.

8404048849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171511215 (or 171511208 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 49.

The square root of 8404048849 is about 91673.5995202545. The cubic root of 8404048849 is about 2033.1192671504.

The spelling of 8404048849 in words is "eight billion, four hundred four million, forty-eight thousand, eight hundred forty-nine".