6354556345 has 4 divisors (see below), whose sum is σ = 7625467620. Its totient is φ = 5083645072.

The previous prime is 6354556343. The next prime is 6354556381. The reversal of 6354556345 is 5436554536.

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 4352172841 + 2002383504 = 65971^2 + 44748^2 .

It is a cyclic number.

It is not a de Polignac number, because 6354556345 - 2¹ = 6354556343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6354556295 and 6354556304.

It is not an unprimeable number, because it can be changed into a prime (6354556343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635455630 + ... + 635455639.

It is an arithmetic number, because the mean of its divisors is an integer number (1906366905).

Almost surely, 2^6354556345 is an apocalyptic number.

It is an amenable number.

6354556345 is a deficient number, since it is larger than the sum of its proper divisors (1270911275).

6354556345 is a wasteful number, since it uses less digits than its factorization.

6354556345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270911274.

The product of its digits is 3240000, while the sum is 46.

The square root of 6354556345 is about 79715.4711771812. The cubic root of 6354556345 is about 1852.2307004591.

The spelling of 6354556345 in words is "six billion, three hundred fifty-four million, five hundred fifty-six thousand, three hundred forty-five".