63333870649 has 4 divisors (see below), whose sum is σ = 72381566464. Its totient is φ = 54286174836.

The previous prime is 63333870629. The next prime is 63333870667. The reversal of 63333870649 is 94607833336.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63333870649 - 2⁷ = 63333870521 is a prime.

It is a super-2 number, since 2×63333870649² (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 = 63333870596 and 63333870605.

It is not an unprimeable number, because it can be changed into a prime (63333870629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4523847897 + ... + 4523847910.

It is an arithmetic number, because the mean of its divisors is an integer number (18095391616).

Almost surely, 2^63333870649 is an apocalyptic number.

It is an amenable number.

63333870649 is a deficient number, since it is larger than the sum of its proper divisors (9047695815).

63333870649 is an equidigital number, since it uses as much as digits as its factorization.

63333870649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9047695814.

The product of its (nonzero) digits is 5878656, while the sum is 52.

The spelling of 63333870649 in words is "sixty-three billion, three hundred thirty-three million, eight hundred seventy thousand, six hundred forty-nine".