68990438448 has 100 divisors (see below), whose sum is σ = 201655740528. Its totient is φ = 22769078400.

The previous prime is 68990438441. The next prime is 68990438449. The reversal of 68990438448 is 84483409986.

68990438448 is a `hidden beast` number, since 68 + 9 + 90 + 43 + 8 + 448 = 666.

It is not an unprimeable number, because it can be changed into a prime (68990438441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 132636 + ... + 394427.

Almost surely, 2^68990438448 is an apocalyptic number.

It is an amenable number.

68990438448 is an abundant number, since it is smaller than the sum of its proper divisors (132665302080).

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

68990438448 is a wasteful number, since it uses less digits than its factorization.

68990438448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527184 (or 527169 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 63.

The spelling of 68990438448 in words is "sixty-eight billion, nine hundred ninety million, four hundred thirty-eight thousand, four hundred forty-eight".