1028281178061 has 48 divisors (see below), whose sum is σ = 1564202045952. Its totient is φ = 649680134400.

The previous prime is 1028281178021. The next prime is 1028281178069. The reversal of 1028281178061 is 1608711828201.

It is not a de Polignac number, because 1028281178061 - 2⁷ = 1028281177933 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1028281177998 and 1028281178016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028281178069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10102921 + ... + 10204193.

It is an arithmetic number, because the mean of its divisors is an integer number (32587542624).

Almost surely, 2^{1028281178061} is an apocalyptic number.

It is an amenable number.

1028281178061 is a deficient number, since it is larger than the sum of its proper divisors (535920867891).

1028281178061 is a wasteful number, since it uses less digits than its factorization.

1028281178061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101754 (or 101751 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 45.

The spelling of 1028281178061 in words is "one trillion, twenty-eight billion, two hundred eighty-one million, one hundred seventy-eight thousand, sixty-one".