6286578049 has 4 divisors (see below), whose sum is σ = 6286738900. Its totient is φ = 6286417200.

The previous prime is 6286578031. The next prime is 6286578061. The reversal of 6286578049 is 9408756826.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5120833600 + 1165744449 = 71560^2 + 34143^2 .

It is a cyclic number.

It is not a de Polignac number, because 6286578049 - 2¹⁵ = 6286545281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6286578029) 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, 19999 + ... + 113899.

It is an arithmetic number, because the mean of its divisors is an integer number (1571684725).

Almost surely, 2^6286578049 is an apocalyptic number.

It is an amenable number.

6286578049 is a deficient number, since it is larger than the sum of its proper divisors (160851).

6286578049 is an equidigital number, since it uses as much as digits as its factorization.

6286578049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160850.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The square root of 6286578049 is about 79287.9439070027. The cubic root of 6286578049 is about 1845.6022200590.

The spelling of 6286578049 in words is "six billion, two hundred eighty-six million, five hundred seventy-eight thousand, forty-nine".