1385371555552 has 12 divisors (see below), whose sum is σ = 2727450250056. Its totient is φ = 692685777760.

The previous prime is 1385371555549. The next prime is 1385371555559. The reversal of 1385371555552 is 2555551735831.

It is a junction number, because it is equal to n+sod(n) for n = 1385371555493 and 1385371555502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385371555559) 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 as a sum of consecutive naturals, namely, 21646430524 + ... + 21646430587.

It is an arithmetic number, because the mean of its divisors is an integer number (227287520838).

Almost surely, 2^{1385371555552} is an apocalyptic number.

It is an amenable number.

1385371555552 is a deficient number, since it is larger than the sum of its proper divisors (1342078694504).

1385371555552 is an equidigital number, since it uses as much as digits as its factorization.

1385371555552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43292861121 (or 43292861113 counting only the distinct ones).

The product of its digits is 15750000, while the sum is 55.

The spelling of 1385371555552 in words is "one trillion, three hundred eighty-five billion, three hundred seventy-one million, five hundred fifty-five thousand, five hundred fifty-two".