64244367100 has 18 divisors (see below), whose sum is σ = 139410276824. Its totient is φ = 25697746800.

The previous prime is 64244367041. The next prime is 64244367137. The reversal of 64244367100 is 176344246.

It is a self number, because there is not a number n which added to its sum of digits gives 64244367100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321221736 + ... + 321221935.

Almost surely, 2^64244367100 is an apocalyptic number.

It is an amenable number.

64244367100 is an abundant number, since it is smaller than the sum of its proper divisors (75165909724).

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

64244367100 is a wasteful number, since it uses less digits than its factorization.

64244367100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642443685 (or 642443678 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 64244367100 in words is "sixty-four billion, two hundred forty-four million, three hundred sixty-seven thousand, one hundred".