63083821871 has 4 divisors (see below), whose sum is σ = 72095796432. Its totient is φ = 54071847312.

The previous prime is 63083821819. The next prime is 63083821891. The reversal of 63083821871 is 17812838036.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-63083821871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63083821811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505987270 + ... + 4505987283.

It is an arithmetic number, because the mean of its divisors is an integer number (18023949108).

Almost surely, 2^63083821871 is an apocalyptic number.

63083821871 is a deficient number, since it is larger than the sum of its proper divisors (9011974561).

63083821871 is an equidigital number, since it uses as much as digits as its factorization.

63083821871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9011974560.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 63083821871 in words is "sixty-three billion, eighty-three million, eight hundred twenty-one thousand, eight hundred seventy-one".