6634472545 has 8 divisors (see below), whose sum is σ = 8091881640. Its totient is φ = 5220568320.

The previous prime is 6634472527. The next prime is 6634472549. The reversal of 6634472545 is 5452744366.

It can be written as a sum of positive squares in 4 ways, for example, as 394578496 + 6239894049 = 19864^2 + 78993^2 .

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

It is not a de Polignac number, because 6634472545 - 2⁷ = 6634472417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6634472495 and 6634472504.

It is not an unprimeable number, because it can be changed into a prime (6634472549) 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 7 ways as a sum of consecutive naturals, for example, 10875880 + ... + 10876489.

It is an arithmetic number, because the mean of its divisors is an integer number (1011485205).

Almost surely, 2^6634472545 is an apocalyptic number.

It is an amenable number.

6634472545 is a deficient number, since it is larger than the sum of its proper divisors (1457409095).

6634472545 is a wasteful number, since it uses less digits than its factorization.

6634472545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21752435.

The product of its digits is 2419200, while the sum is 46.

The square root of 6634472545 is about 81452.2715766724. The cubic root of 6634472545 is about 1879.0375850577.

The spelling of 6634472545 in words is "six billion, six hundred thirty-four million, four hundred seventy-two thousand, five hundred forty-five".