64574047546 has 16 divisors (see below), whose sum is σ = 97295520168. Its totient is φ = 32142297600.

The previous prime is 64574047541. The next prime is 64574047547.

64574047546 is nontrivially palindromic in base 10.

64574047546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 59555033521 + 5019014025 = 244039^2 + 70845^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64574047493 and 64574047502.

It is not an unprimeable number, because it can be changed into a prime (64574047541) 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, 1531726 + ... + 1573318.

Almost surely, 2^64574047546 is an apocalyptic number.

64574047546 is a deficient number, since it is larger than the sum of its proper divisors (32721472622).

64574047546 is a wasteful number, since it uses less digits than its factorization.

64574047546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45057.

The product of its (nonzero) digits is 11289600, while the sum is 52.

The spelling of 64574047546 in words is "sixty-four billion, five hundred seventy-four million, forty-seven thousand, five hundred forty-six".