63725406344 has 32 divisors (see below), whose sum is σ = 120828996120. Its totient is φ = 31504951296.

The previous prime is 63725406341. The next prime is 63725406377. The reversal of 63725406344 is 44360452736.

It can be written as a sum of positive squares in 4 ways, for example, as 63333762244 + 391644100 = 251662^2 + 19790^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63725406295 and 63725406304.

It is not an unprimeable number, because it can be changed into a prime (63725406341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810602 + ... + 885734.

Almost surely, 2^63725406344 is an apocalyptic number.

It is an amenable number.

63725406344 is a deficient number, since it is larger than the sum of its proper divisors (57103589776).

63725406344 is a wasteful number, since it uses less digits than its factorization.

63725406344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76329 (or 76325 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 44.

The spelling of 63725406344 in words is "sixty-three billion, seven hundred twenty-five million, four hundred six thousand, three hundred forty-four".