10954340261 has 4 divisors (see below), whose sum is σ = 10955158572. Its totient is φ = 10953521952.

The previous prime is 10954340251. The next prime is 10954340273. The reversal of 10954340261 is 16204345901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4280430625 + 6673909636 = 65425^2 + 81694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10954340261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10954340231) 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, 388736 + ... + 415961.

It is an arithmetic number, because the mean of its divisors is an integer number (2738789643).

Almost surely, 2^10954340261 is an apocalyptic number.

It is an amenable number.

10954340261 is a deficient number, since it is larger than the sum of its proper divisors (818311).

10954340261 is an equidigital number, since it uses as much as digits as its factorization.

10954340261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818310.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 10954340261 in words is "ten billion, nine hundred fifty-four million, three hundred forty thousand, two hundred sixty-one".