1020126875817 has 12 divisors (see below), whose sum is σ = 1582237603536. Its totient is φ = 582929643240.

The previous prime is 1020126875783. The next prime is 1020126875861. The reversal of 1020126875817 is 7185786210201.

It is not a de Polignac number, because 1020126875817 - 2¹⁵ = 1020126843049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020126875897) 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, 3469819159 + ... + 3469819452.

It is an arithmetic number, because the mean of its divisors is an integer number (131853133628).

Almost surely, 2^{1020126875817} is an apocalyptic number.

It is an amenable number.

1020126875817 is a deficient number, since it is larger than the sum of its proper divisors (562110727719).

1020126875817 is an equidigital number, since it uses as much as digits as its factorization.

1020126875817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939638628 (or 6939638621 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 48.

The spelling of 1020126875817 in words is "one trillion, twenty billion, one hundred twenty-six million, eight hundred seventy-five thousand, eight hundred seventeen".