64750766487 has 16 divisors (see below), whose sum is σ = 94202853888. Its totient is φ = 39234588480.

The previous prime is 64750766459. The next prime is 64750766527. The reversal of 64750766487 is 78466705746.

It is a happy number.

It is not a de Polignac number, because 64750766487 - 2⁷ = 64750766359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64750766487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64750761487) 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, 47278 + ... + 362955.

It is an arithmetic number, because the mean of its divisors is an integer number (5887678368).

Almost surely, 2^64750766487 is an apocalyptic number.

64750766487 is a deficient number, since it is larger than the sum of its proper divisors (29452087401).

64750766487 is a wasteful number, since it uses less digits than its factorization.

64750766487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415030.

The product of its (nonzero) digits is 47416320, while the sum is 60.

The spelling of 64750766487 in words is "sixty-four billion, seven hundred fifty million, seven hundred sixty-six thousand, four hundred eighty-seven".