1270645218441 has 9 divisors (see below), whose sum is σ = 1835381311309. Its totient is φ = 847094557836.

The previous prime is 1270645218439. The next prime is 1270645218461. The reversal of 1270645218441 is 1448125460721.

The square root of 1270645218441 is 1127229.

It is a perfect power (a square), and thus also a powerful number.

1270645218441 is a `hidden beast` number, since 1 + 2 + 7 + 0 + 6 + 4 + 521 + 84 + 41 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1270645218441 - 2¹ = 1270645218439 is a prime.

It is a super-2 number, since 2×1270645218441² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1270645218421) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3193816 + ... + 3569558.

Almost surely, 2^{1270645218441} is an apocalyptic number.

1270645218441 is the 1127229-th square number.

1270645218441 is the 563615-th centered octagonal number.

It is an amenable number.

1270645218441 is a deficient number, since it is larger than the sum of its proper divisors (564736092868).

1270645218441 is an frugal number, since it uses more digits than its factorization.

1270645218441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751492 (or 375746 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 1270645218441 in words is "one trillion, two hundred seventy billion, six hundred forty-five million, two hundred eighteen thousand, four hundred forty-one".