64547074546 has 32 divisors (see below), whose sum is σ = 104989530240. Its totient is φ = 29650656000.

The previous prime is 64547074519. The next prime is 64547074547.

64547074546 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64547074546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64547074493 and 64547074502.

It is not an unprimeable number, because it can be changed into a prime (64547074547) 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 15 ways as a sum of consecutive naturals, for example, 111445 + ... + 376183.

It is an arithmetic number, because the mean of its divisors is an integer number (3280922820).

Almost surely, 2^64547074546 is an apocalyptic number.

64547074546 is a deficient number, since it is larger than the sum of its proper divisors (40442455694).

64547074546 is a wasteful number, since it uses less digits than its factorization.

64547074546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264930.

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

The spelling of 64547074546 in words is "sixty-four billion, five hundred forty-seven million, seventy-four thousand, five hundred forty-six".