854720798547 has 24 divisors (see below), whose sum is σ = 1446206622912. Its totient is φ = 444010803600.

The previous prime is 854720798543. The next prime is 854720798549. The reversal of 854720798547 is 745897027458.

It is not a de Polignac number, because 854720798547 - 2² = 854720798543 is a prime.

It is a super-2 number, since 2×854720798547² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (854720798543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264290529 + ... + 264293762.

It is an arithmetic number, because the mean of its divisors is an integer number (60258609288).

Almost surely, 2^854720798547 is an apocalyptic number.

854720798547 is a deficient number, since it is larger than the sum of its proper divisors (591485824365).

854720798547 is a wasteful number, since it uses less digits than its factorization.

854720798547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528584319 (or 528584312 counting only the distinct ones).

The product of its (nonzero) digits is 158054400, while the sum is 66.

The spelling of 854720798547 in words is "eight hundred fifty-four billion, seven hundred twenty million, seven hundred ninety-eight thousand, five hundred forty-seven".