63504061031 has 4 divisors (see below), whose sum is σ = 63504942864. Its totient is φ = 63503179200.

The previous prime is 63504060989. The next prime is 63504061067. The reversal of 63504061031 is 13016040536.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63504061031 is a prime.

It is a super-2 number, since 2×63504061031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63504060985 and 63504061003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63504064031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 322250 + ... + 480471.

It is an arithmetic number, because the mean of its divisors is an integer number (15876235716).

Almost surely, 2^63504061031 is an apocalyptic number.

63504061031 is a deficient number, since it is larger than the sum of its proper divisors (881833).

63504061031 is an equidigital number, since it uses as much as digits as its factorization.

63504061031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881832.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 63504061031 in words is "sixty-three billion, five hundred four million, sixty-one thousand, thirty-one".