1864681863896 has 16 divisors (see below), whose sum is σ = 3496344879600. Its totient is φ = 932323229344.

The previous prime is 1864681863883. The next prime is 1864681863949. The reversal of 1864681863896 is 6983681864681.

It is a congruent number.

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, 1759700 + ... + 2612643.

It is an arithmetic number, because the mean of its divisors is an integer number (218521554975).

Almost surely, 2^{1864681863896} is an apocalyptic number.

It is an amenable number.

1864681863896 is a deficient number, since it is larger than the sum of its proper divisors (1631663015704).

1864681863896 is a wasteful number, since it uses less digits than its factorization.

1864681863896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425658 (or 4425654 counting only the distinct ones).

The product of its digits is 573308928, while the sum is 74.

The spelling of 1864681863896 in words is "one trillion, eight hundred sixty-four billion, six hundred eighty-one million, eight hundred sixty-three thousand, eight hundred ninety-six".