260454060409 has 9 divisors (see below), whose sum is σ = 272282772783. Its totient is φ = 249118743192.

The previous prime is 260454060401. The next prime is 260454060499. The reversal of 260454060409 is 904060454062.

It is a happy number.

The square root of 260454060409 is 510347.

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., 174053336809 + 86400723600 = 417197^2 + 293940^2 .

It is not a de Polignac number, because 260454060409 - 2³ = 260454060401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260454060401) 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, 11726887 + ... + 11749075.

Almost surely, 2^260454060409 is an apocalyptic number.

260454060409 is the 510347-th square number.

260454060409 is the 255174-th centered octagonal number.

It is an amenable number.

260454060409 is a deficient number, since it is larger than the sum of its proper divisors (11828712374).

260454060409 is an frugal number, since it uses more digits than its factorization.

260454060409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44424 (or 22212 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 260454060409 in words is "two hundred sixty billion, four hundred fifty-four million, sixty thousand, four hundred nine".