2021527352545 has 8 divisors (see below), whose sum is σ = 2435271862824. Its totient is φ = 1610929188864.

The previous prime is 2021527352521. The next prime is 2021527352707. The reversal of 2021527352545 is 5452537251202.

It can be written as a sum of positive squares in 4 ways, for example, as 158894715456 + 1862632637089 = 398616^2 + 1364783^2 .

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 2021527352545 - 2¹¹ = 2021527350497 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 786585234 + ... + 786587803.

It is an arithmetic number, because the mean of its divisors is an integer number (304408982853).

Almost surely, 2^{2021527352545} is an apocalyptic number.

It is an amenable number.

2021527352545 is a deficient number, since it is larger than the sum of its proper divisors (413744510279).

2021527352545 is a wasteful number, since it uses less digits than its factorization.

2021527352545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573173299.

The product of its (nonzero) digits is 840000, while the sum is 43.

The spelling of 2021527352545 in words is "two trillion, twenty-one billion, five hundred twenty-seven million, three hundred fifty-two thousand, five hundred forty-five".