1287366434618 has 8 divisors (see below), whose sum is σ = 2106599620320. Its totient is φ = 585166561180.

The previous prime is 1287366434597. The next prime is 1287366434621. The reversal of 1287366434618 is 8164346637821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1287366434618² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29258328038 + ... + 29258328081.

It is an arithmetic number, because the mean of its divisors is an integer number (263324952540).

Almost surely, 2^{1287366434618} is an apocalyptic number.

1287366434618 is a deficient number, since it is larger than the sum of its proper divisors (819233185702).

1287366434618 is a wasteful number, since it uses less digits than its factorization.

1287366434618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58516656132.

The product of its digits is 27869184, while the sum is 59.

The spelling of 1287366434618 in words is "one trillion, two hundred eighty-seven billion, three hundred sixty-six million, four hundred thirty-four thousand, six hundred eighteen".