63750694450 has 24 divisors (see below), whose sum is σ = 125551369332. Its totient is φ = 24000261120.

The previous prime is 63750694421. The next prime is 63750694451. The reversal of 63750694450 is 5449605736.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 33184815889 + 30565878561 = 182167^2 + 174831^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63750694394 and 63750694403.

It is not an unprimeable number, because it can be changed into a prime (63750694451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37499559 + ... + 37501258.

Almost surely, 2^63750694450 is an apocalyptic number.

63750694450 is a deficient number, since it is larger than the sum of its proper divisors (61800674882).

63750694450 is a wasteful number, since it uses less digits than its factorization.

63750694450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75000846 (or 75000841 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 63750694450 in words is "sixty-three billion, seven hundred fifty million, six hundred ninety-four thousand, four hundred fifty".