1027788128619 has 12 divisors (see below), whose sum is σ = 1594120362984. Its totient is φ = 587307501984.

The previous prime is 1027788128611. The next prime is 1027788128623. The reversal of 1027788128619 is 9168218877201.

It is not a de Polignac number, because 1027788128619 - 2³ = 1027788128611 is a prime.

It is a super-2 number, since 2×1027788128619² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1027788128611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3495877842 + ... + 3495878135.

It is an arithmetic number, because the mean of its divisors is an integer number (132843363582).

Almost surely, 2^{1027788128619} is an apocalyptic number.

1027788128619 is a deficient number, since it is larger than the sum of its proper divisors (566332234365).

1027788128619 is an equidigital number, since it uses as much as digits as its factorization.

1027788128619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6991755994 (or 6991755987 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 60.

The spelling of 1027788128619 in words is "one trillion, twenty-seven billion, seven hundred eighty-eight million, one hundred twenty-eight thousand, six hundred nineteen".