64211858652 has 48 divisors (see below), whose sum is σ = 166990602240. Its totient is φ = 19084637952.

The previous prime is 64211858603. The next prime is 64211858663. The reversal of 64211858652 is 25685811246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8279388 + ... + 8287139.

It is an arithmetic number, because the mean of its divisors is an integer number (3478970880).

Almost surely, 2^64211858652 is an apocalyptic number.

It is an amenable number.

64211858652 is an abundant number, since it is smaller than the sum of its proper divisors (102778743588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64211858652 is a wasteful number, since it uses less digits than its factorization.

64211858652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16566570 (or 16566568 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The spelling of 64211858652 in words is "sixty-four billion, two hundred eleven million, eight hundred fifty-eight thousand, six hundred fifty-two".