64069727148 has 216 divisors, whose sum is σ = 193006195200. Its totient is φ = 17860118976.

The previous prime is 64069727131. The next prime is 64069727159. The reversal of 64069727148 is 84172796046.

64069727148 is a `hidden beast` number, since 6 + 406 + 97 + 2 + 7 + 148 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 64069727094 and 64069727103.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31421113 + ... + 31423151.

It is an arithmetic number, because the mean of its divisors is an integer number (893547200).

Almost surely, 2^64069727148 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 64069727148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96503097600).

64069727148 is an abundant number, since it is smaller than the sum of its proper divisors (128936468052).

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

64069727148 is a wasteful number, since it uses less digits than its factorization.

64069727148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 64069727148 in words is "sixty-four billion, sixty-nine million, seven hundred twenty-seven thousand, one hundred forty-eight".