2690259973 has 6 divisors (see below), whose sum is σ = 2763293766. Its totient is φ = 2617243272.

The previous prime is 2690259967. The next prime is 2690259991. The reversal of 2690259973 is 3799520962.

It can be written as a sum of positive squares in only one way, i.e., 2617550244 + 72709729 = 51162^2 + 8527^2 .

It is not a de Polignac number, because 2690259973 - 2²¹ = 2688162821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2690259973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690259773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311236 + ... + 319762.

It is an arithmetic number, because the mean of its divisors is an integer number (460548961).

Almost surely, 2^2690259973 is an apocalyptic number.

It is an amenable number.

2690259973 is a deficient number, since it is larger than the sum of its proper divisors (73033793).

2690259973 is an frugal number, since it uses more digits than its factorization.

2690259973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17091 (or 8564 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 2690259973 is about 51867.7160958529. The cubic root of 2690259973 is about 1390.8002177655.

The spelling of 2690259973 in words is "two billion, six hundred ninety million, two hundred fifty-nine thousand, nine hundred seventy-three".