9650454413261 has 4 divisors (see below), whose sum is σ = 9650481759900. Its totient is φ = 9650427066624.

The previous prime is 9650454413239. The next prime is 9650454413291. The reversal of 9650454413261 is 1623144540569.

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 5051548429225 + 4598905984036 = 2247565^2 + 2144506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9650454413261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9650454413291) 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, 13136966 + ... + 13852103.

It is an arithmetic number, because the mean of its divisors is an integer number (2412620439975).

Almost surely, 2^{9650454413261} is an apocalyptic number.

It is an amenable number.

9650454413261 is a deficient number, since it is larger than the sum of its proper divisors (27346639).

9650454413261 is a wasteful number, since it uses less digits than its factorization.

9650454413261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27346638.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 9650454413261 in words is "nine trillion, six hundred fifty billion, four hundred fifty-four million, four hundred thirteen thousand, two hundred sixty-one".