5445126621 has 24 divisors (see below), whose sum is σ = 8663518656. Its totient is φ = 3268031040.

The previous prime is 5445126619. The next prime is 5445126653. The reversal of 5445126621 is 1266215445.

5445126621 is a `hidden beast` number, since 5 + 4 + 4 + 5 + 1 + 26 + 621 = 666.

It is not a de Polignac number, because 5445126621 - 2¹ = 5445126619 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5445126611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256800 + ... + 277193.

It is an arithmetic number, because the mean of its divisors is an integer number (360979944).

Almost surely, 2^5445126621 is an apocalyptic number.

It is an amenable number.

5445126621 is a deficient number, since it is larger than the sum of its proper divisors (3218392035).

5445126621 is a wasteful number, since it uses less digits than its factorization.

5445126621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534113 (or 534110 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 5445126621 is about 73791.1012317881. The cubic root of 5445126621 is about 1759.2841679378.

The spelling of 5445126621 in words is "five billion, four hundred forty-five million, one hundred twenty-six thousand, six hundred twenty-one".