1387399466365 has 8 divisors (see below), whose sum is σ = 1816232028768. Its totient is φ = 1009017793680.

The previous prime is 1387399466353. The next prime is 1387399466377. The reversal of 1387399466365 is 5636649937831.

It is an interprime number because it is at equal distance from previous prime (1387399466353) and next prime (1387399466377).

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

It is not a de Polignac number, because 1387399466365 - 2⁵ = 1387399466333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1387399466294 and 1387399466303.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12612722367 + ... + 12612722476.

It is an arithmetic number, because the mean of its divisors is an integer number (227029003596).

Almost surely, 2^{1387399466365} is an apocalyptic number.

It is an amenable number.

1387399466365 is a deficient number, since it is larger than the sum of its proper divisors (428832562403).

1387399466365 is a wasteful number, since it uses less digits than its factorization.

1387399466365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25225444859.

The product of its digits is 529079040, while the sum is 70.

The spelling of 1387399466365 in words is "one trillion, three hundred eighty-seven billion, three hundred ninety-nine million, four hundred sixty-six thousand, three hundred sixty-five".