1028359394761 has 4 divisors (see below), whose sum is σ = 1043708042512. Its totient is φ = 1013010747012.

The previous prime is 1028359394693. The next prime is 1028359394767. The reversal of 1028359394761 is 1674939538201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1028359394761 - 2³¹ = 1026211911113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1028359394696 and 1028359394705.

It is not an unprimeable number, because it can be changed into a prime (1028359394767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7674323775 + ... + 7674323908.

It is an arithmetic number, because the mean of its divisors is an integer number (260927010628).

It is a 1-persistent number, because it is pandigital, but 2⋅1028359394761 = 2056718789522 is not.

Almost surely, 2^{1028359394761} is an apocalyptic number.

It is an amenable number.

1028359394761 is a deficient number, since it is larger than the sum of its proper divisors (15348647751).

1028359394761 is an equidigital number, since it uses as much as digits as its factorization.

1028359394761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15348647750.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 1028359394761 in words is "one trillion, twenty-eight billion, three hundred fifty-nine million, three hundred ninety-four thousand, seven hundred sixty-one".