7453401226021 has 4 divisors (see below), whose sum is σ = 7472175536812. Its totient is φ = 7434626915232.

The previous prime is 7453401225973. The next prime is 7453401226067. The reversal of 7453401226021 is 1206221043547.

7453401226021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6660786722500 + 792614503521 = 2580850^2 + 890289^2 .

It is a cyclic number.

It is not a de Polignac number, because 7453401226021 - 2³³ = 7444811291429 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 (7453401226721) 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, 9387154800 + ... + 9387155593.

It is an arithmetic number, because the mean of its divisors is an integer number (1868043884203).

Almost surely, 2^{7453401226021} is an apocalyptic number.

It is an amenable number.

7453401226021 is a deficient number, since it is larger than the sum of its proper divisors (18774310791).

7453401226021 is a wasteful number, since it uses less digits than its factorization.

7453401226021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18774310790.

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 7453401226021 its reverse (1206221043547), we get a palindrome (8659622269568).

The spelling of 7453401226021 in words is "seven trillion, four hundred fifty-three billion, four hundred one million, two hundred twenty-six thousand, twenty-one".