1351385421386 has 192 divisors, whose sum is σ = 2931297102720. Its totient is φ = 458030039040.

The previous prime is 1351385421313. The next prime is 1351385421427. The reversal of 1351385421386 is 6831245831531.

It is a Curzon 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 95 ways as a sum of consecutive naturals, for example, 51376190 + ... + 51402486.

It is an arithmetic number, because the mean of its divisors is an integer number (15267172410).

Almost surely, 2^{1351385421386} is an apocalyptic number.

1351385421386 is an abundant number, since it is smaller than the sum of its proper divisors (1579911681334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1351385421386 is a wasteful number, since it uses less digits than its factorization.

1351385421386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26549 (or 26542 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

It can be divided in two parts, 1351385 and 421386, that added together give a palindrome (1772771).

The spelling of 1351385421386 in words is "one trillion, three hundred fifty-one billion, three hundred eighty-five million, four hundred twenty-one thousand, three hundred eighty-six".