63674803642 has 16 divisors (see below), whose sum is σ = 95750831592. Its totient is φ = 31757958400.

The previous prime is 63674803597. The next prime is 63674803649. The reversal of 63674803642 is 24630847636.

It can be written as a sum of positive squares in 4 ways, for example, as 63056734321 + 618069321 = 251111^2 + 24861^2 .

It is not an unprimeable number, because it can be changed into a prime (63674803649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1312278 + ... + 1359934.

Almost surely, 2^63674803642 is an apocalyptic number.

63674803642 is a deficient number, since it is larger than the sum of its proper divisors (32076027950).

63674803642 is a wasteful number, since it uses less digits than its factorization.

63674803642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49313.

The product of its (nonzero) digits is 3483648, while the sum is 49.

The spelling of 63674803642 in words is "sixty-three billion, six hundred seventy-four million, eight hundred three thousand, six hundred forty-two".