64534347652 has 12 divisors (see below), whose sum is σ = 112938443856. Its totient is φ = 32266220840.

The previous prime is 64534347629. The next prime is 64534347659. The reversal of 64534347652 is 25674343546.

It is a junction number, because it is equal to n+sod(n) for n = 64534347596 and 64534347605.

It is not an unprimeable number, because it can be changed into a prime (64534347659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73174 + ... + 366637.

It is an arithmetic number, because the mean of its divisors is an integer number (9411536988).

Almost surely, 2^64534347652 is an apocalyptic number.

It is an amenable number.

64534347652 is a deficient number, since it is larger than the sum of its proper divisors (48404096204).

64534347652 is a wasteful number, since it uses less digits than its factorization.

64534347652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476498 (or 476496 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 49.

The spelling of 64534347652 in words is "sixty-four billion, five hundred thirty-four million, three hundred forty-seven thousand, six hundred fifty-two".