274694739156 has 120 divisors (see below), whose sum is σ = 761348344680. Its totient is φ = 86065348608.

The previous prime is 274694739149. The next prime is 274694739157. The reversal of 274694739156 is 651937496472.

274694739156 is a `hidden beast` number, since 2 + 7 + 4 + 6 + 9 + 473 + 9 + 156 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 95963648400 + 178731090756 = 309780^2 + 422766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 274694739093 and 274694739102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274694739157) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4203226 + ... + 4268078.

It is an arithmetic number, because the mean of its divisors is an integer number (6344569539).

Almost surely, 2^274694739156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274694739156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380674172340).

274694739156 is an abundant number, since it is smaller than the sum of its proper divisors (486653605524).

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

274694739156 is a wasteful number, since it uses less digits than its factorization.

274694739156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65655 (or 65644 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 274694739156 in words is "two hundred seventy-four billion, six hundred ninety-four million, seven hundred thirty-nine thousand, one hundred fifty-six".