198457863802 has 64 divisors (see below), whose sum is σ = 346027002624. Its totient is φ = 84480675840.

The previous prime is 198457863787. The next prime is 198457863833. The reversal of 198457863802 is 208368754891.

198457863802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5040898 + ... + 5080114.

It is an arithmetic number, because the mean of its divisors is an integer number (5406671916).

It is a 1-persistent number, because it is pandigital, but 2⋅198457863802 = 396915727604 is not.

Almost surely, 2^198457863802 is an apocalyptic number.

198457863802 is a deficient number, since it is larger than the sum of its proper divisors (147569138822).

198457863802 is a wasteful number, since it uses less digits than its factorization.

198457863802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39463.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 198457863802 in words is "one hundred ninety-eight billion, four hundred fifty-seven million, eight hundred sixty-three thousand, eight hundred two".