6688013454 has 16 divisors (see below), whose sum is σ = 14862252240. Its totient is φ = 2229337800.

The previous prime is 6688013429. The next prime is 6688013459. The reversal of 6688013454 is 4543108866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688013459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61925997 + ... + 61926104.

It is an arithmetic number, because the mean of its divisors is an integer number (928890765).

Almost surely, 2^6688013454 is an apocalyptic number.

6688013454 is an abundant number, since it is smaller than the sum of its proper divisors (8174238786).

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

6688013454 is a wasteful number, since it uses less digits than its factorization.

6688013454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123852112 (or 123852106 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 6688013454 is about 81780.2754580834. The cubic root of 6688013454 is about 1884.0787270846.

The spelling of 6688013454 in words is "six billion, six hundred eighty-eight million, thirteen thousand, four hundred fifty-four".