63545757628 has 6 divisors (see below), whose sum is σ = 111205075856. Its totient is φ = 31772878812.

The previous prime is 63545757593. The next prime is 63545757629. The reversal of 63545757628 is 82675754536.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63545757629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7943219700 + ... + 7943219707.

Almost surely, 2^63545757628 is an apocalyptic number.

It is an amenable number.

63545757628 is a deficient number, since it is larger than the sum of its proper divisors (47659318228).

63545757628 is a wasteful number, since it uses less digits than its factorization.

63545757628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15886439411 (or 15886439409 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 58.

The spelling of 63545757628 in words is "sixty-three billion, five hundred forty-five million, seven hundred fifty-seven thousand, six hundred twenty-eight".