274331645406 has 144 divisors (see below), whose sum is σ = 737294122656. Its totient is φ = 72181684224.

The previous prime is 274331645363. The next prime is 274331645411. The reversal of 274331645406 is 604546133472.

274331645406 is a `hidden beast` number, since 2 + 7 + 43 + 3 + 1 + 64 + 540 + 6 = 666.

274331645406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9205426 + ... + 9235178.

It is an arithmetic number, because the mean of its divisors is an integer number (5120098074).

Almost surely, 2^274331645406 is an apocalyptic number.

274331645406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 274331645406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368647061328).

274331645406 is an abundant number, since it is smaller than the sum of its proper divisors (462962477250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

274331645406 is a wasteful number, since it uses less digits than its factorization.

274331645406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30227 (or 30211 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

Adding to 274331645406 its reverse (604546133472), we get a palindrome (878877778878).

The spelling of 274331645406 in words is "two hundred seventy-four billion, three hundred thirty-one million, six hundred forty-five thousand, four hundred six".