6451477573212 has 72 divisors (see below), whose sum is σ = 18686264303616. Its totient is φ = 1838466539424.

The previous prime is 6451477573171. The next prime is 6451477573213. The reversal of 6451477573212 is 2123757741546.

6451477573212 is a `hidden beast` number, since 6 + 4 + 5 + 1 + 47 + 7 + 573 + 21 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6451477573213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33325288 + ... + 33518319.

Almost surely, 2^{6451477573212} is an apocalyptic number.

It is an amenable number.

6451477573212 is an abundant number, since it is smaller than the sum of its proper divisors (12234786730404).

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

6451477573212 is a wasteful number, since it uses less digits than its factorization.

6451477573212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66844007 (or 66844002 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 54.

The spelling of 6451477573212 in words is "six trillion, four hundred fifty-one billion, four hundred seventy-seven million, five hundred seventy-three thousand, two hundred twelve".