63772437456 has 640 divisors, whose sum is σ = 236864839680. Its totient is φ = 15966720000.

The previous prime is 63772437451. The next prime is 63772437481. The reversal of 63772437456 is 65473427736.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63772437451) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 226948036 + ... + 226948316.

It is an arithmetic number, because the mean of its divisors is an integer number (370101312).

Almost surely, 2^63772437456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63772437456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118432419840).

63772437456 is an abundant number, since it is smaller than the sum of its proper divisors (173092402224).

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

63772437456 is a wasteful number, since it uses less digits than its factorization.

63772437456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 580 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 54.

The spelling of 63772437456 in words is "sixty-three billion, seven hundred seventy-two million, four hundred thirty-seven thousand, four hundred fifty-six".