63527720450 has 24 divisors (see below), whose sum is σ = 122236099380. Its totient is φ = 24534843200.

The previous prime is 63527720449. The next prime is 63527720453. The reversal of 63527720450 is 5402772536.

It can be written as a sum of positive squares in 6 ways, for example, as 31672253089 + 31855467361 = 177967^2 + 178481^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63527720398 and 63527720407.

It is not an unprimeable number, because it can be changed into a prime (63527720453) 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, 21904661 + ... + 21907560.

Almost surely, 2^63527720450 is an apocalyptic number.

63527720450 is a deficient number, since it is larger than the sum of its proper divisors (58708378930).

63527720450 is a wasteful number, since it uses less digits than its factorization.

63527720450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43812262 (or 43812257 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 63527720450 in words is "sixty-three billion, five hundred twenty-seven million, seven hundred twenty thousand, four hundred fifty".