1865989068098 has 4 divisors (see below), whose sum is σ = 2798983602150. Its totient is φ = 932994534048.

The previous prime is 1865989068079. The next prime is 1865989068137. The reversal of 1865989068098 is 8908609895681.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1094653710049 + 771335358049 = 1046257^2 + 878257^2 .

It is a super-2 number, since 2×1865989068098² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 466497267023 + ... + 466497267026.

Almost surely, 2^{1865989068098} is an apocalyptic number.

1865989068098 is a deficient number, since it is larger than the sum of its proper divisors (932994534052).

1865989068098 is an equidigital number, since it uses as much as digits as its factorization.

1865989068098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932994534051.

The product of its (nonzero) digits is 537477120, while the sum is 77.

The spelling of 1865989068098 in words is "one trillion, eight hundred sixty-five billion, nine hundred eighty-nine million, sixty-eight thousand, ninety-eight".