1378353354218 has 8 divisors (see below), whose sum is σ = 2088844774212. Its totient is φ = 682071762816.

The previous prime is 1378353354211. The next prime is 1378353354289. The reversal of 1378353354218 is 8124533538731.

It can be written as a sum of positive squares in 2 ways, for example, as 1244146160569 + 134207193649 = 1115413^2 + 366343^2 .

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

It is a super-2 number, since 2×1378353354218² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1378353354218.

It is not an unprimeable number, because it can be changed into a prime (1378353354211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3552456905 + ... + 3552457292.

Almost surely, 2^{1378353354218} is an apocalyptic number.

1378353354218 is a deficient number, since it is larger than the sum of its proper divisors (710491419994).

1378353354218 is an equidigital number, since it uses as much as digits as its factorization.

1378353354218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104914296.

The product of its digits is 7257600, while the sum is 53.

The spelling of 1378353354218 in words is "one trillion, three hundred seventy-eight billion, three hundred fifty-three million, three hundred fifty-four thousand, two hundred eighteen".