63421830995 has 32 divisors (see below), whose sum is σ = 80642822400. Its totient is φ = 47749032576.

The previous prime is 63421830971. The next prime is 63421831009. The reversal of 63421830995 is 59903812436.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63421830995 - 2⁶ = 63421830931 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31917392 + ... + 31919378.

It is an arithmetic number, because the mean of its divisors is an integer number (2520088200).

Almost surely, 2^63421830995 is an apocalyptic number.

63421830995 is a deficient number, since it is larger than the sum of its proper divisors (17220991405).

63421830995 is a wasteful number, since it uses less digits than its factorization.

63421830995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 63421830995 in words is "sixty-three billion, four hundred twenty-one million, eight hundred thirty thousand, nine hundred ninety-five".