1381416878371 has 4 divisors (see below), whose sum is σ = 1381421150200. Its totient is φ = 1381412606544.

The previous prime is 1381416878323. The next prime is 1381416878461. The reversal of 1381416878371 is 1738786141831.

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

It is a cyclic number.

It is not a de Polignac number, because 1381416878371 - 2⁹ = 1381416877859 is a prime.

It is a super-2 number, since 2×1381416878371² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381416878311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607226 + ... + 2312143.

It is an arithmetic number, because the mean of its divisors is an integer number (345355287550).

Almost surely, 2^{1381416878371} is an apocalyptic number.

1381416878371 is a deficient number, since it is larger than the sum of its proper divisors (4271829).

1381416878371 is an equidigital number, since it uses as much as digits as its factorization.

1381416878371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271828.

The product of its digits is 5419008, while the sum is 58.

The spelling of 1381416878371 in words is "one trillion, three hundred eighty-one billion, four hundred sixteen million, eight hundred seventy-eight thousand, three hundred seventy-one".