6454911678 has 16 divisors (see below), whose sum is σ = 12911340816. Its totient is φ = 2151384320.

The previous prime is 6454911677. The next prime is 6454911703. The reversal of 6454911678 is 8761194546.

6454911678 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6454911678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6454911677) 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, 3603 + ... + 113678.

It is an arithmetic number, because the mean of its divisors is an integer number (806958801).

Almost surely, 2^6454911678 is an apocalyptic number.

6454911678 is an abundant number, since it is smaller than the sum of its proper divisors (6456429138).

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

6454911678 is a wasteful number, since it uses less digits than its factorization.

6454911678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126459.

The product of its digits is 1451520, while the sum is 51.

The square root of 6454911678 is about 80342.4649733875. The cubic root of 6454911678 is about 1861.9303655519.

The spelling of 6454911678 in words is "six billion, four hundred fifty-four million, nine hundred eleven thousand, six hundred seventy-eight".