6420444450054 has 32 divisors (see below), whose sum is σ = 13399976966400. Its totient is φ = 2046977757792.

The previous prime is 6420444450053. The next prime is 6420444450103. The reversal of 6420444450054 is 4500544440246.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6420444449988 and 6420444450015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420444450053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999204 + ... + 3720120.

It is an arithmetic number, because the mean of its divisors is an integer number (418749280200).

Almost surely, 2^{6420444450054} is an apocalyptic number.

6420444450054 is an abundant number, since it is smaller than the sum of its proper divisors (6979532516346).

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

6420444450054 is a wasteful number, since it uses less digits than its factorization.

6420444450054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738044.

The product of its (nonzero) digits is 1228800, while the sum is 42.

The spelling of 6420444450054 in words is "six trillion, four hundred twenty billion, four hundred forty-four million, four hundred fifty thousand, fifty-four".