6781474049 has 8 divisors (see below), whose sum is σ = 7859415168. Its totient is φ = 5730822720.

The previous prime is 6781474033. The next prime is 6781474069. The reversal of 6781474049 is 9404741876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6781474049 - 2⁴ = 6781474033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6781473988 and 6781474006.

It is not an unprimeable number, because it can be changed into a prime (6781474009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6821912 + ... + 6822905.

It is an arithmetic number, because the mean of its divisors is an integer number (982426896).

Almost surely, 2^6781474049 is an apocalyptic number.

It is an amenable number.

6781474049 is a deficient number, since it is larger than the sum of its proper divisors (1077941119).

6781474049 is a wasteful number, since it uses less digits than its factorization.

6781474049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13644895.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 6781474049 is about 82349.7058221825. The cubic root of 6781474049 is about 1892.8144149590.

The spelling of 6781474049 in words is "six billion, seven hundred eighty-one million, four hundred seventy-four thousand, forty-nine".