63818900042 has 8 divisors (see below), whose sum is σ = 95729614500. Its totient is φ = 31909028544.

The previous prime is 63818900029. The next prime is 63818900087. The reversal of 63818900042 is 24000981836.

It can be written as a sum of positive squares in 2 ways, for example, as 44854580521 + 18964319521 = 211789^2 + 137711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36584 + ... + 359132.

Almost surely, 2^63818900042 is an apocalyptic number.

63818900042 is a deficient number, since it is larger than the sum of its proper divisors (31910714458).

63818900042 is a wasteful number, since it uses less digits than its factorization.

63818900042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421480.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 63818900042 in words is "sixty-three billion, eight hundred eighteen million, nine hundred thousand, forty-two".