63725452735 has 32 divisors (see below), whose sum is σ = 89558711424. Its totient is φ = 42616320000.

The previous prime is 63725452709. The next prime is 63725452751. The reversal of 63725452735 is 53725452736.

It is not a de Polignac number, because 63725452735 - 2¹³ = 63725444543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5132535 + ... + 5144935.

It is an arithmetic number, because the mean of its divisors is an integer number (2798709732).

Almost surely, 2^63725452735 is an apocalyptic number.

63725452735 is a deficient number, since it is larger than the sum of its proper divisors (25833258689).

63725452735 is a wasteful number, since it uses less digits than its factorization.

63725452735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16035.

The product of its digits is 5292000, while the sum is 49.

Subtracting from 63725452735 its reverse (53725452736), we obtain a palindrome (9999999999).

The spelling of 63725452735 in words is "sixty-three billion, seven hundred twenty-five million, four hundred fifty-two thousand, seven hundred thirty-five".