64534443546 has 32 divisors (see below), whose sum is σ = 136672049088. Its totient is φ = 20244488960.

The previous prime is 64534443539. The next prime is 64534443553.

64534443546 is nontrivially palindromic in base 10.

64534443546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64534443539) and next prime (64534443553).

It is a super-2 number, since 2×64534443546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64534443495 and 64534443504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455636 + ... + 2481776.

It is an arithmetic number, because the mean of its divisors is an integer number (4271001534).

Almost surely, 2^64534443546 is an apocalyptic number.

64534443546 is an abundant number, since it is smaller than the sum of its proper divisors (72137605542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64534443546 is a wasteful number, since it uses less digits than its factorization.

64534443546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50366.

The product of its digits is 8294400, while the sum is 48.

The spelling of 64534443546 in words is "sixty-four billion, five hundred thirty-four million, four hundred forty-three thousand, five hundred forty-six".