64276109549652 has 576 divisors, whose sum is σ = 205759522418688. Its totient is φ = 15351202944000.

The previous prime is 64276109549647. The next prime is 64276109549699. The reversal of 64276109549652 is 25694590167246.

64276109549652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64276109549652² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 31962261327 + ... + 31962263337.

It is an arithmetic number, because the mean of its divisors is an integer number (357221393088).

Almost surely, 2^{64276109549652} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64276109549652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102879761209344).

64276109549652 is an abundant number, since it is smaller than the sum of its proper divisors (141483412869036).

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

64276109549652 is a wasteful number, since it uses less digits than its factorization.

64276109549652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340 (or 3331 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 66.

The spelling of 64276109549652 in words is "sixty-four trillion, two hundred seventy-six billion, one hundred nine million, five hundred forty-nine thousand, six hundred fifty-two".