1868568486398 has 32 divisors (see below), whose sum is σ = 2826176596992. Its totient is φ = 926537032800.

The previous prime is 1868568486391. The next prime is 1868568486401. The reversal of 1868568486398 is 8936848658681.

It is a super-2 number, since 2×1868568486398² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868568486391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327184763 + ... + 327190473.

It is an arithmetic number, because the mean of its divisors is an integer number (88318018656).

Almost surely, 2^{1868568486398} is an apocalyptic number.

1868568486398 is a deficient number, since it is larger than the sum of its proper divisors (957608110594).

1868568486398 is a wasteful number, since it uses less digits than its factorization.

1868568486398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7880.

The product of its digits is 3822059520, while the sum is 80.

The spelling of 1868568486398 in words is "one trillion, eight hundred sixty-eight billion, five hundred sixty-eight million, four hundred eighty-six thousand, three hundred ninety-eight".