649834960104 has 96 divisors (see below), whose sum is σ = 1921241125440. Its totient is φ = 196788998400.

The previous prime is 649834960097. The next prime is 649834960129. The reversal of 649834960104 is 401069438946.

It is a happy number.

649834960104 is a `hidden beast` number, since 6 + 49 + 8 + 3 + 496 + 0 + 104 = 666.

649834960104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 925204 + ... + 1468220.

It is an arithmetic number, because the mean of its divisors is an integer number (20012928390).

Almost surely, 2^649834960104 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 649834960104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960620562720).

649834960104 is an abundant number, since it is smaller than the sum of its proper divisors (1271406165336).

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

649834960104 is a wasteful number, since it uses less digits than its factorization.

649834960104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544551 (or 544544 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 649834960104 in words is "six hundred forty-nine billion, eight hundred thirty-four million, nine hundred sixty thousand, one hundred four".