1027788128625 has 64 divisors (see below), whose sum is σ = 1792603717632. Its totient is φ = 521968708800.

The previous prime is 1027788128623. The next prime is 1027788128677. The reversal of 1027788128625 is 5268218877201.

It is a happy number.

It is not a de Polignac number, because 1027788128625 - 2¹ = 1027788128623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1027788128623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1656192 + ... + 2190558.

It is an arithmetic number, because the mean of its divisors is an integer number (28009433088).

Almost surely, 2^{1027788128625} is an apocalyptic number.

1027788128625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1027788128625 is a deficient number, since it is larger than the sum of its proper divisors (764815589007).

1027788128625 is a wasteful number, since it uses less digits than its factorization.

1027788128625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534631 (or 534621 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 1027788128625 in words is "one trillion, twenty-seven billion, seven hundred eighty-eight million, one hundred twenty-eight thousand, six hundred twenty-five".