64000773545 has 32 divisors (see below), whose sum is σ = 82924134912. Its totient is φ = 47238976512.

The previous prime is 64000773541. The next prime is 64000773593. The reversal of 64000773545 is 54537700046.

It is a cyclic number.

It is not a de Polignac number, because 64000773545 - 2² = 64000773541 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64000773541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5864564 + ... + 5875466.

It is an arithmetic number, because the mean of its divisors is an integer number (2591379216).

Almost surely, 2^64000773545 is an apocalyptic number.

It is an amenable number.

64000773545 is a deficient number, since it is larger than the sum of its proper divisors (18923361367).

64000773545 is a wasteful number, since it uses less digits than its factorization.

64000773545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12281.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 64000773545 in words is "sixty-four billion, seven hundred seventy-three thousand, five hundred forty-five".