64748890800 has 360 divisors, whose sum is σ = 247167708528. Its totient is φ = 15695539200.

The previous prime is 64748890781. The next prime is 64748890853. The reversal of 64748890800 is 809884746.

64748890800 is a `hidden beast` number, since 6 + 474 + 8 + 8 + 90 + 80 + 0 = 666.

64748890800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

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, 4784844 + ... + 4798356.

Almost surely, 2^64748890800 is an apocalyptic number.

64748890800 is a gapful number since it is divisible by the number (60) 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 64748890800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123583854264).

64748890800 is an abundant number, since it is smaller than the sum of its proper divisors (182418817728).

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

64748890800 is a wasteful number, since it uses less digits than its factorization.

64748890800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570 (or 13534 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 64748890800 in words is "sixty-four billion, seven hundred forty-eight million, eight hundred ninety thousand, eight hundred".