63507305828 has 24 divisors (see below), whose sum is σ = 112242737880. Its totient is φ = 31438561280.

The previous prime is 63507305779. The next prime is 63507305857. The reversal of 63507305828 is 82850370536.

It can be written as a sum of positive squares in 4 ways, for example, as 12932693284 + 50574612544 = 113722^2 + 224888^2 .

It is a super-2 number, since 2×63507305828² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 344288 + ... + 495528.

It is an arithmetic number, because the mean of its divisors is an integer number (4676780745).

Almost surely, 2^63507305828 is an apocalyptic number.

It is an amenable number.

63507305828 is a deficient number, since it is larger than the sum of its proper divisors (48735432052).

63507305828 is a wasteful number, since it uses less digits than its factorization.

63507305828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152287 (or 152285 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 63507305828 in words is "sixty-three billion, five hundred seven million, three hundred five thousand, eight hundred twenty-eight".