64875281700 has 72 divisors (see below), whose sum is σ = 189967403808. Its totient is φ = 17091633920.

The previous prime is 64875281687. The next prime is 64875281701. The reversal of 64875281700 is 718257846.

It is a self number, because there is not a number n which added to its sum of digits gives 64875281700.

It is not an unprimeable number, because it can be changed into a prime (64875281701) 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, 1277817 + ... + 1327616.

It is an arithmetic number, because the mean of its divisors is an integer number (2638436164).

Almost surely, 2^64875281700 is an apocalyptic number.

64875281700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64875281700 is an abundant number, since it is smaller than the sum of its proper divisors (125092122108).

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

64875281700 is a wasteful number, since it uses less digits than its factorization.

64875281700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605533 (or 2605526 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 64875281700 in words is "sixty-four billion, eight hundred seventy-five million, two hundred eighty-one thousand, seven hundred".