1385254607428 has 12 divisors (see below), whose sum is σ = 2424208566780. Its totient is φ = 692623588352.

The previous prime is 1385254607377. The next prime is 1385254607437. The reversal of 1385254607428 is 8247064525831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 679506759684 + 705747847744 = 824322^2 + 840088^2 .

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 3 ways as a sum of consecutive naturals, for example, 17100 + ... + 1664572.

It is an arithmetic number, because the mean of its divisors is an integer number (202017380565).

Almost surely, 2^{1385254607428} is an apocalyptic number.

It is an amenable number.

1385254607428 is a deficient number, since it is larger than the sum of its proper divisors (1038953959352).

1385254607428 is a wasteful number, since it uses less digits than its factorization.

1385254607428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857686 (or 1857684 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 1385254607428 in words is "one trillion, three hundred eighty-five billion, two hundred fifty-four million, six hundred seven thousand, four hundred twenty-eight".