1868514371285 has 16 divisors (see below), whose sum is σ = 2249919938160. Its totient is φ = 1489681459200.

The previous prime is 1868514371249. The next prime is 1868514371341. The reversal of 1868514371285 is 5821734158681.

It can be written as a sum of positive squares in 8 ways, for example, as 49919177476 + 1818595193809 = 223426^2 + 1348553^2 .

It is not a de Polignac number, because 1868514371285 - 2⁸ = 1868514371029 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2628635 + ... + 3262935.

It is an arithmetic number, because the mean of its divisors is an integer number (140619996135).

Almost surely, 2^{1868514371285} is an apocalyptic number.

It is an amenable number.

1868514371285 is a deficient number, since it is larger than the sum of its proper divisors (381405566875).

1868514371285 is a wasteful number, since it uses less digits than its factorization.

1868514371285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636328.

The product of its digits is 12902400, while the sum is 59.

The spelling of 1868514371285 in words is "one trillion, eight hundred sixty-eight billion, five hundred fourteen million, three hundred seventy-one thousand, two hundred eighty-five".