1578368605425 has 96 divisors (see below), whose sum is σ = 2786559148800. Its totient is φ = 786544112640.

The previous prime is 1578368605403. The next prime is 1578368605439. The reversal of 1578368605425 is 5245068638751.

It is not a de Polignac number, because 1578368605425 - 2¹⁶ = 1578368539889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20898631 + ... + 20974019.

It is an arithmetic number, because the mean of its divisors is an integer number (29026657800).

Almost surely, 2^{1578368605425} is an apocalyptic number.

1578368605425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1578368605425 is a deficient number, since it is larger than the sum of its proper divisors (1208190543375).

1578368605425 is a wasteful number, since it uses less digits than its factorization.

1578368605425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75707 (or 75702 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 60.

The spelling of 1578368605425 in words is "one trillion, five hundred seventy-eight billion, three hundred sixty-eight million, six hundred five thousand, four hundred twenty-five".