1260462026209 has 27 divisors (see below), whose sum is σ = 1307955536121. Its totient is φ = 1214674829760.

The previous prime is 1260462026123. The next prime is 1260462026233. The reversal of 1260462026209 is 9026202640621.

The square root of 1260462026209 is 1122703.

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

It can be written as a sum of positive squares in 4 ways, for example, as 7790710225 + 1252671315984 = 88265^2 + 1119228^2 .

It is not a de Polignac number, because 1260462026209 - 2¹³ = 1260462018017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260462726209) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6398284299 + ... + 6398284495.

Almost surely, 2^{1260462026209} is an apocalyptic number.

1260462026209 is the 1122703-rd square number.

1260462026209 is the 561352-nd centered octagonal number.

It is an amenable number.

1260462026209 is a deficient number, since it is larger than the sum of its proper divisors (47493509912).

1260462026209 is an frugal number, since it uses more digits than its factorization.

1260462026209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 1260462026209 in words is "one trillion, two hundred sixty billion, four hundred sixty-two million, twenty-six thousand, two hundred nine".