1026521270245 has 16 divisors (see below), whose sum is σ = 1252063581552. Its totient is φ = 807725928960.

The previous prime is 1026521270237. The next prime is 1026521270267. The reversal of 1026521270245 is 5420721256201.

It can be written as a sum of positive squares in 8 ways, for example, as 462098129284 + 564423140961 = 679778^2 + 751281^2 .

It is not a de Polignac number, because 1026521270245 - 2³ = 1026521270237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14186979 + ... + 14259151.

It is an arithmetic number, because the mean of its divisors is an integer number (78253973847).

Almost surely, 2^{1026521270245} is an apocalyptic number.

It is an amenable number.

1026521270245 is a deficient number, since it is larger than the sum of its proper divisors (225542311307).

1026521270245 is an equidigital number, since it uses as much as digits as its factorization.

1026521270245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118872.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 1026521270245 in words is "one trillion, twenty-six billion, five hundred twenty-one million, two hundred seventy thousand, two hundred forty-five".