1864242498198 has 16 divisors (see below), whose sum is σ = 3728707621056. Its totient is φ = 621377061960.

The previous prime is 1864242498197. The next prime is 1864242498269. The reversal of 1864242498198 is 8918942424681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864242498197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9167068 + ... + 9368223.

It is an arithmetic number, because the mean of its divisors is an integer number (233044226316).

Almost surely, 2^{1864242498198} is an apocalyptic number.

1864242498198 is an abundant number, since it is smaller than the sum of its proper divisors (1864465122858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1864242498198 is a wasteful number, since it uses less digits than its factorization.

1864242498198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18552059.

The product of its digits is 63700992, while the sum is 66.

The spelling of 1864242498198 in words is "one trillion, eight hundred sixty-four billion, two hundred forty-two million, four hundred ninety-eight thousand, one hundred ninety-eight".