68487680484 has 36 divisors (see below), whose sum is σ = 174653697036. Its totient is φ = 22627196928.

The previous prime is 68487680483. The next prime is 68487680533. The reversal of 68487680484 is 48408678486.

68487680484 is a `hidden beast` number, since 6 + 8 + 4 + 8 + 76 + 80 + 484 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 951105600 + 67536574884 = 30840^2 + 259878^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (68487680483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8413789 + ... + 8421924.

Almost surely, 2^68487680484 is an apocalyptic number.

It is an amenable number.

68487680484 is an abundant number, since it is smaller than the sum of its proper divisors (106166016552).

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

68487680484 is a wasteful number, since it uses less digits than its factorization.

68487680484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835836 (or 16835831 counting only the distinct ones).

The product of its (nonzero) digits is 66060288, while the sum is 63.

The spelling of 68487680484 in words is "sixty-eight billion, four hundred eighty-seven million, six hundred eighty thousand, four hundred eighty-four".