63444753450 has 288 divisors, whose sum is σ = 199472232960. Its totient is φ = 14317171200.

The previous prime is 63444753439. The next prime is 63444753461. The reversal of 63444753450 is 5435744436.

63444753450 is a `hidden beast` number, since 63 + 4 + 4 + 4 + 7 + 534 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (63444753439) and next prime (63444753461).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 63444753396 and 63444753405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3436444 + ... + 3454856.

It is an arithmetic number, because the mean of its divisors is an integer number (692611920).

Almost surely, 2^63444753450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63444753450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99736116480).

63444753450 is an abundant number, since it is smaller than the sum of its proper divisors (136027479510).

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

63444753450 is a wasteful number, since it uses less digits than its factorization.

63444753450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18494 (or 18486 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 45.

The spelling of 63444753450 in words is "sixty-three billion, four hundred forty-four million, seven hundred fifty-three thousand, four hundred fifty".