274137478655 has 4 divisors (see below), whose sum is σ = 328964974392. Its totient is φ = 219309982920.

The previous prime is 274137478651. The next prime is 274137478661. The reversal of 274137478655 is 556874731472.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 274137478655 - 2² = 274137478651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 274137478594 and 274137478603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274137478651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27413747861 + ... + 27413747870.

It is an arithmetic number, because the mean of its divisors is an integer number (82241243598).

Almost surely, 2^274137478655 is an apocalyptic number.

274137478655 is a deficient number, since it is larger than the sum of its proper divisors (54827495737).

274137478655 is an equidigital number, since it uses as much as digits as its factorization.

274137478655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54827495736.

The product of its digits is 39513600, while the sum is 59.

The spelling of 274137478655 in words is "two hundred seventy-four billion, one hundred thirty-seven million, four hundred seventy-eight thousand, six hundred fifty-five".