6503473969 has 4 divisors (see below), whose sum is σ = 6508819044. Its totient is φ = 6498128896.

The previous prime is 6503473961. The next prime is 6503473987. The reversal of 6503473969 is 9693743056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5004855025 + 1498618944 = 70745^2 + 38712^2 .

It is a cyclic number.

It is not a de Polignac number, because 6503473969 - 2³ = 6503473961 is a prime.

It is a super-2 number, since 2×6503473969² = 84590347330921225922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6503473961) 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, 2670712 + ... + 2673145.

It is an arithmetic number, because the mean of its divisors is an integer number (1627204761).

Almost surely, 2^6503473969 is an apocalyptic number.

It is an amenable number.

6503473969 is a deficient number, since it is larger than the sum of its proper divisors (5345075).

6503473969 is a wasteful number, since it uses less digits than its factorization.

6503473969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345074.

The product of its (nonzero) digits is 3674160, while the sum is 52.

The square root of 6503473969 is about 80644.1192462290. The cubic root of 6503473969 is about 1866.5879968369.

The spelling of 6503473969 in words is "six billion, five hundred three million, four hundred seventy-three thousand, nine hundred sixty-nine".