64227395232 has 864 divisors, whose sum is σ = 258520973760. Its totient is φ = 15249669120.

The previous prime is 64227395201. The next prime is 64227395273. The reversal of 64227395232 is 23259372246.

64227395232 is a `hidden beast` number, since 6 + 4 + 2 + 27 + 395 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 623566893 + ... + 623566995.

It is an arithmetic number, because the mean of its divisors is an integer number (299214090).

Almost surely, 2^64227395232 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 64227395232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129260486880).

64227395232 is an abundant number, since it is smaller than the sum of its proper divisors (194293578528).

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

64227395232 is a wasteful number, since it uses less digits than its factorization.

64227395232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 139 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

It can be divided in two parts, 642273 and 95232, that added together give a triangular number (737505 = T₁₂₁₄).

The spelling of 64227395232 in words is "sixty-four billion, two hundred twenty-seven million, three hundred ninety-five thousand, two hundred thirty-two".