1028623550441 has 4 divisors (see below), whose sum is σ = 1089130818132. Its totient is φ = 968116282752.

The previous prime is 1028623550399. The next prime is 1028623550483. The reversal of 1028623550441 is 1440553268201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1028623550399) and next prime (1028623550483).

It can be written as a sum of positive squares in 2 ways, for example, as 615328856041 + 413294694400 = 784429^2 + 642880^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028623550441 - 2²² = 1028619356137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028623550491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30253633820 + ... + 30253633853.

It is an arithmetic number, because the mean of its divisors is an integer number (272282704533).

Almost surely, 2^{1028623550441} is an apocalyptic number.

It is an amenable number.

1028623550441 is a deficient number, since it is larger than the sum of its proper divisors (60507267691).

1028623550441 is an equidigital number, since it uses as much as digits as its factorization.

1028623550441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60507267690.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 1028623550441 in words is "one trillion, twenty-eight billion, six hundred twenty-three million, five hundred fifty thousand, four hundred forty-one".