1257344048266 has 16 divisors (see below), whose sum is σ = 1930064400000. Its totient is φ = 613992089088.

The previous prime is 1257344048263. The next prime is 1257344048291. The reversal of 1257344048266 is 6628404437521.

It is not an unprimeable number, because it can be changed into a prime (1257344048263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186735 + ... + 1596733.

It is an arithmetic number, because the mean of its divisors is an integer number (120629025000).

Almost surely, 2^{1257344048266} is an apocalyptic number.

1257344048266 is a deficient number, since it is larger than the sum of its proper divisors (672720351734).

1257344048266 is a wasteful number, since it uses less digits than its factorization.

1257344048266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420413.

The product of its (nonzero) digits is 7741440, while the sum is 52.

The spelling of 1257344048266 in words is "one trillion, two hundred fifty-seven billion, three hundred forty-four million, forty-eight thousand, two hundred sixty-six".