274905664045057 has 4 divisors (see below), whose sum is σ = 274907616127956. Its totient is φ = 274903711962160.

The previous prime is 274905664045043. The next prime is 274905664045069. The reversal of 274905664045057 is 750540466509472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 188788451880961 + 86117212164096 = 13740031^2 + 9279936^2 .

It is a cyclic number.

It is not a de Polignac number, because 274905664045057 - 2⁴⁷ = 134168175689729 is a prime.

It is a super-2 number, since 2×274905664045057² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 274905664045057.

It is not an unprimeable number, because it can be changed into a prime (274905664045087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975830194 + ... + 976111867.

It is an arithmetic number, because the mean of its divisors is an integer number (68726904031989).

Almost surely, 2^{274905664045057} is an apocalyptic number.

It is an amenable number.

274905664045057 is a deficient number, since it is larger than the sum of its proper divisors (1952082899).

274905664045057 is a wasteful number, since it uses less digits than its factorization.

274905664045057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952082898.

The product of its (nonzero) digits is 254016000, while the sum is 64.

The spelling of 274905664045057 in words is "two hundred seventy-four trillion, nine hundred five billion, six hundred sixty-four million, forty-five thousand, fifty-seven".