63681125319 has 96 divisors (see below), whose sum is σ = 113094597120. Its totient is φ = 34683137280.

The previous prime is 63681125267. The next prime is 63681125323. The reversal of 63681125319 is 91352118636.

63681125319 is a `hidden beast` number, since 6 + 36 + 81 + 1 + 2 + 531 + 9 = 666.

It is not a de Polignac number, because 63681125319 - 2⁸ = 63681125063 is a prime.

It is a super-2 number, since 2×63681125319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63681125119) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12166527 + ... + 12171759.

It is an arithmetic number, because the mean of its divisors is an integer number (1178068720).

Almost surely, 2^63681125319 is an apocalyptic number.

63681125319 is a deficient number, since it is larger than the sum of its proper divisors (49413471801).

63681125319 is a wasteful number, since it uses less digits than its factorization.

63681125319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378 (or 5341 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 63681125319 in words is "sixty-three billion, six hundred eighty-one million, one hundred twenty-five thousand, three hundred nineteen".