1260839282641 has 9 divisors (see below), whose sum is σ = 1263223142811. Its totient is φ = 1258459918992.

The previous prime is 1260839282639. The next prime is 1260839282671. The reversal of 1260839282641 is 1462829380621.

It is a happy number.

The square root of 1260839282641 is 1122871.

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

It can be written as a sum of positive squares in only one way, i.e., 1217281923025 + 43557359616 = 1103305^2 + 208704^2 .

It is not a de Polignac number, because 1260839282641 - 2¹ = 1260839282639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260839282611) 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, 1159925200 + ... + 1159926286.

It is an arithmetic number, because the mean of its divisors is an integer number (140358126979).

Almost surely, 2^{1260839282641} is an apocalyptic number.

1260839282641 is the 1122871-st square number.

1260839282641 is the 561436-th centered octagonal number.

It is an amenable number.

1260839282641 is a deficient number, since it is larger than the sum of its proper divisors (2383860170).

1260839282641 is an frugal number, since it uses more digits than its factorization.

1260839282641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 1260839282641 in words is "one trillion, two hundred sixty billion, eight hundred thirty-nine million, two hundred eighty-two thousand, six hundred forty-one".