1028538633977 has 4 divisors (see below), whose sum is σ = 1045971492240. Its totient is φ = 1011105775716.

The previous prime is 1028538633961. The next prime is 1028538634001. The reversal of 1028538633977 is 7793368358201.

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 1028538633977 - 2⁴ = 1028538633961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028538633077) 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, 8716429043 + ... + 8716429160.

It is an arithmetic number, because the mean of its divisors is an integer number (261492873060).

Almost surely, 2^{1028538633977} is an apocalyptic number.

It is an amenable number.

1028538633977 is a deficient number, since it is larger than the sum of its proper divisors (17432858263).

1028538633977 is an equidigital number, since it uses as much as digits as its factorization.

1028538633977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17432858262.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 1028538633977 in words is "one trillion, twenty-eight billion, five hundred thirty-eight million, six hundred thirty-three thousand, nine hundred seventy-seven".