4521220412453 has 4 divisors (see below), whose sum is σ = 4787174554380. Its totient is φ = 4255266270528.

The previous prime is 4521220412447. The next prime is 4521220412459. The reversal of 4521220412453 is 3542140221254.

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 (4521220412447) and next prime (4521220412459).

It can be written as a sum of positive squares in 2 ways, for example, as 3204379246084 + 1316841166369 = 1790078^2 + 1147537^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521220412453 - 2¹² = 4521220408357 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 (4521220412459) 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, 132977070938 + ... + 132977070971.

It is an arithmetic number, because the mean of its divisors is an integer number (1196793638595).

Almost surely, 2^{4521220412453} is an apocalyptic number.

It is an amenable number.

4521220412453 is a deficient number, since it is larger than the sum of its proper divisors (265954141927).

4521220412453 is a wasteful number, since it uses less digits than its factorization.

4521220412453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265954141926.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 4521220412453 in words is "four trillion, five hundred twenty-one billion, two hundred twenty million, four hundred twelve thousand, four hundred fifty-three".