63814139990 has 16 divisors (see below), whose sum is σ = 114878428848. Its totient is φ = 25522772256.

The previous prime is 63814139989. The next prime is 63814140037. The reversal of 63814139990 is 9993141836.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 266357 + ... + 445616.

It is an arithmetic number, because the mean of its divisors is an integer number (7179901803).

Almost surely, 2^63814139990 is an apocalyptic number.

63814139990 is a deficient number, since it is larger than the sum of its proper divisors (51064288858).

63814139990 is a wasteful number, since it uses less digits than its factorization.

63814139990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720943.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The spelling of 63814139990 in words is "sixty-three billion, eight hundred fourteen million, one hundred thirty-nine thousand, nine hundred ninety".