2690560961 has 6 divisors (see below), whose sum is σ = 2957393586. Its totient is φ = 2445964400.

The previous prime is 2690560937. The next prime is 2690560969. The reversal of 2690560961 is 1690650962.

It can be written as a sum of positive squares in only one way, i.e., 1859334400 + 831226561 = 43120^2 + 28831^2 .

It is not a de Polignac number, because 2690560961 - 2¹⁸ = 2690298817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2690560969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11117900 + ... + 11118141.

It is an arithmetic number, because the mean of its divisors is an integer number (492898931).

Almost surely, 2^2690560961 is an apocalyptic number.

It is an amenable number.

2690560961 is a deficient number, since it is larger than the sum of its proper divisors (266832625).

2690560961 is a wasteful number, since it uses less digits than its factorization.

2690560961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22236063 (or 22236052 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 2690560961 is about 51870.6175112655. The cubic root of 2690560961 is about 1390.8520837029.

Subtracting from 2690560961 its reverse (1690650962), we obtain a palindrome (999909999).

The spelling of 2690560961 in words is "two billion, six hundred ninety million, five hundred sixty thousand, nine hundred sixty-one".