64784250036 has 192 divisors, whose sum is σ = 186383769600. Its totient is φ = 19537083360.

The previous prime is 64784250001. The next prime is 64784250127. The reversal of 64784250036 is 63005248746.

64784250036 is a `hidden beast` number, since 6 + 4 + 78 + 42 + 500 + 36 = 666.

64784250036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64784249973 and 64784250000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21457335 + ... + 21460353.

It is an arithmetic number, because the mean of its divisors is an integer number (970748800).

Almost surely, 2^64784250036 is an apocalyptic number.

64784250036 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64784250036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93191884800).

64784250036 is an abundant number, since it is smaller than the sum of its proper divisors (121599519564).

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

64784250036 is a wasteful number, since it uses less digits than its factorization.

64784250036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 3258 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 64784250036 in words is "sixty-four billion, seven hundred eighty-four million, two hundred fifty thousand, thirty-six".