6451677420 has 48 divisors (see below), whose sum is σ = 18552938208. Its totient is φ = 1673948160.

The previous prime is 6451677413. The next prime is 6451677481. The reversal of 6451677420 is 247761546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450861 + ... + 1455300.

It is an arithmetic number, because the mean of its divisors is an integer number (386519546).

Almost surely, 2^6451677420 is an apocalyptic number.

6451677420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6451677420 is an abundant number, since it is smaller than the sum of its proper divisors (12101260788).

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

6451677420 is a wasteful number, since it uses less digits than its factorization.

6451677420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906210 (or 2906208 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 6451677420 is about 80322.3345029264. The cubic root of 6451677420 is about 1861.6193378397.

The spelling of 6451677420 in words is "six billion, four hundred fifty-one million, six hundred seventy-seven thousand, four hundred twenty".