64117204852 has 48 divisors (see below), whose sum is σ = 115605504000. Its totient is φ = 31105283040.

The previous prime is 64117204849. The next prime is 64117204883. The reversal of 64117204852 is 25840271146.

It is a super-2 number, since 2×64117204852² (a number of 22 digits) contains 22 as substring.

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, 5003149 + ... + 5015947.

It is an arithmetic number, because the mean of its divisors is an integer number (2408448000).

Almost surely, 2^64117204852 is an apocalyptic number.

It is an amenable number.

64117204852 is a deficient number, since it is larger than the sum of its proper divisors (51488299148).

64117204852 is a wasteful number, since it uses less digits than its factorization.

64117204852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156 (or 13154 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

Adding to 64117204852 its reverse (25840271146), we get a palindrome (89957475998).

The spelling of 64117204852 in words is "sixty-four billion, one hundred seventeen million, two hundred four thousand, eight hundred fifty-two".