1274657054257 has 16 divisors (see below), whose sum is σ = 1351817031312. Its totient is φ = 1197740851200.

The previous prime is 1274657054243. The next prime is 1274657054261. The reversal of 1274657054257 is 7524507564721.

It can be written as a sum of positive squares in 8 ways, for example, as 802885889521 + 471771164736 = 896039^2 + 686856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274657054257 - 2⁷ = 1274657054129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1274657054198 and 1274657054207.

It is not an unprimeable number, because it can be changed into a prime (1274657054057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28092493 + ... + 28137829.

It is an arithmetic number, because the mean of its divisors is an integer number (84488564457).

Almost surely, 2^{1274657054257} is an apocalyptic number.

1274657054257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1274657054257 is a deficient number, since it is larger than the sum of its proper divisors (77159977055).

1274657054257 is a wasteful number, since it uses less digits than its factorization.

1274657054257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47988.

The product of its (nonzero) digits is 16464000, while the sum is 55.

The spelling of 1274657054257 in words is "one trillion, two hundred seventy-four billion, six hundred fifty-seven million, fifty-four thousand, two hundred fifty-seven".