64587193652 has 6 divisors (see below), whose sum is σ = 113027588898. Its totient is φ = 32293596824.

The previous prime is 64587193631. The next prime is 64587193681. The reversal of 64587193652 is 25639178546.

64587193652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50788932496 + 13798261156 = 225364^2 + 117466^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8073399203 + ... + 8073399210.

It is an arithmetic number, because the mean of its divisors is an integer number (18837931483).

Almost surely, 2^64587193652 is an apocalyptic number.

It is an amenable number.

64587193652 is a deficient number, since it is larger than the sum of its proper divisors (48440395246).

64587193652 is a wasteful number, since it uses less digits than its factorization.

64587193652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16146798417 (or 16146798415 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 56.

The spelling of 64587193652 in words is "sixty-four billion, five hundred eighty-seven million, one hundred ninety-three thousand, six hundred fifty-two".