6454549927221 has 16 divisors (see below), whose sum is σ = 9388478729280. Its totient is φ = 3911830744320.

The previous prime is 6454549927201. The next prime is 6454549927253. The reversal of 6454549927221 is 1227299454546.

It is not a de Polignac number, because 6454549927221 - 2¹³ = 6454549919029 is a prime.

It is a super-2 number, since 2×6454549927221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6454549927201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13989021 + ... + 14443053.

It is an arithmetic number, because the mean of its divisors is an integer number (586779920580).

Almost surely, 2^{6454549927221} is an apocalyptic number.

It is an amenable number.

6454549927221 is a deficient number, since it is larger than the sum of its proper divisors (2933928802059).

6454549927221 is a wasteful number, since it uses less digits than its factorization.

6454549927221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884836.

The product of its digits is 43545600, while the sum is 60.

The spelling of 6454549927221 in words is "six trillion, four hundred fifty-four billion, five hundred forty-nine million, nine hundred twenty-seven thousand, two hundred twenty-one".