1028972009245 has 8 divisors (see below), whose sum is σ = 1236158486784. Its totient is φ = 822249556944.

The previous prime is 1028972009243. The next prime is 1028972009287. The reversal of 1028972009245 is 5429002798201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1028972009245 - 2¹ = 1028972009243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028972009243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116001429 + ... + 116010298.

It is an arithmetic number, because the mean of its divisors is an integer number (154519810848).

Almost surely, 2^{1028972009245} is an apocalyptic number.

It is an amenable number.

1028972009245 is a deficient number, since it is larger than the sum of its proper divisors (207186477539).

1028972009245 is an equidigital number, since it uses as much as digits as its factorization.

1028972009245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232012619.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 1028972009245 in words is "one trillion, twenty-eight billion, nine hundred seventy-two million, nine thousand, two hundred forty-five".