9961772774341 has 8 divisors (see below), whose sum is σ = 10316254465440. Its totient is φ = 9612873472272.

The previous prime is 9961772774329. The next prime is 9961772774363. The reversal of 9961772774341 is 1434772771699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9961772774341 - 2⁹ = 9961772773829 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 (9961772774321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395593626 + ... + 1395600763.

It is an arithmetic number, because the mean of its divisors is an integer number (1289531808180).

Almost surely, 2^{9961772774341} is an apocalyptic number.

It is an amenable number.

9961772774341 is a deficient number, since it is larger than the sum of its proper divisors (354481691099).

9961772774341 is a wasteful number, since it uses less digits than its factorization.

9961772774341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791194515.

The product of its digits is 112021056, while the sum is 67.

The spelling of 9961772774341 in words is "nine trillion, nine hundred sixty-one billion, seven hundred seventy-two million, seven hundred seventy-four thousand, three hundred forty-one".