64936230912 has 360 divisors, whose sum is σ = 218615132736. Its totient is φ = 18187812864.

The previous prime is 64936230911. The next prime is 64936230917. The reversal of 64936230912 is 21903263946.

64936230912 is a `hidden beast` number, since 6 + 4 + 9 + 3 + 623 + 0 + 9 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (64936230911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54705583 + ... + 54706769.

Almost surely, 2^64936230912 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 64936230912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109307566368).

64936230912 is an abundant number, since it is smaller than the sum of its proper divisors (153678901824).

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

64936230912 is a wasteful number, since it uses less digits than its factorization.

64936230912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 64936230912 in words is "sixty-four billion, nine hundred thirty-six million, two hundred thirty thousand, nine hundred twelve".