64375505687546 has 16 divisors (see below), whose sum is σ = 97274204160000. Its totient is φ = 31951598130288.

The previous prime is 64375505687513. The next prime is 64375505687567. The reversal of 64375505687546 is 64578650557346.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 64375505687546.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206634746 + ... + 206946053.

It is an arithmetic number, because the mean of its divisors is an integer number (6079637760000).

Almost surely, 2^{64375505687546} is an apocalyptic number.

64375505687546 is a deficient number, since it is larger than the sum of its proper divisors (32898698472454).

64375505687546 is a wasteful number, since it uses less digits than its factorization.

64375505687546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413581373.

The product of its (nonzero) digits is 2540160000, while the sum is 71.

The spelling of 64375505687546 in words is "sixty-four trillion, three hundred seventy-five billion, five hundred five million, six hundred eighty-seven thousand, five hundred forty-six".