6472470649 has 4 divisors (see below), whose sum is σ = 6478037136. Its totient is φ = 6466904164.

The previous prime is 6472470629. The next prime is 6472470659. The reversal of 6472470649 is 9460742746.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6472470649 - 2¹¹ = 6472468601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6472470619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2781499 + ... + 2783824.

It is an arithmetic number, because the mean of its divisors is an integer number (1619509284).

Almost surely, 2^6472470649 is an apocalyptic number.

It is an amenable number.

6472470649 is a deficient number, since it is larger than the sum of its proper divisors (5566487).

6472470649 is a wasteful number, since it uses less digits than its factorization.

6472470649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566486.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The square root of 6472470649 is about 80451.6665396063. Note that the first 3 decimals coincide. The cubic root of 6472470649 is about 1863.6171421102.

The spelling of 6472470649 in words is "six billion, four hundred seventy-two million, four hundred seventy thousand, six hundred forty-nine".