2140761288409 has 4 divisors (see below), whose sum is σ = 2141437250304. Its totient is φ = 2140085326516.

The previous prime is 2140761288361. The next prime is 2140761288427. The reversal of 2140761288409 is 9048821670412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2140761288409 - 2³³ = 2132171353817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140761288499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337976197 + ... + 337982530.

It is an arithmetic number, because the mean of its divisors is an integer number (535359312576).

Almost surely, 2^{2140761288409} is an apocalyptic number.

It is an amenable number.

2140761288409 is a deficient number, since it is larger than the sum of its proper divisors (675961895).

2140761288409 is an equidigital number, since it uses as much as digits as its factorization.

2140761288409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675961894.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 2140761288409 in words is "two trillion, one hundred forty billion, seven hundred sixty-one million, two hundred eighty-eight thousand, four hundred nine".