9961004935349 has 4 divisors (see below), whose sum is σ = 10727236084236. Its totient is φ = 9194773786464.

The previous prime is 9961004935279. The next prime is 9961004935361. The reversal of 9961004935349 is 9435394001699.

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 1203441910225 + 8757563025124 = 1097015^2 + 2959318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9961004935349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9961004935291 and 9961004935300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9961004935949) 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, 383115574424 + ... + 383115574449.

It is an arithmetic number, because the mean of its divisors is an integer number (2681809021059).

Almost surely, 2^{9961004935349} is an apocalyptic number.

It is an amenable number.

9961004935349 is a deficient number, since it is larger than the sum of its proper divisors (766231148887).

9961004935349 is a wasteful number, since it uses less digits than its factorization.

9961004935349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766231148886.

The product of its (nonzero) digits is 28343520, while the sum is 62.

The spelling of 9961004935349 in words is "nine trillion, nine hundred sixty-one billion, four million, nine hundred thirty-five thousand, three hundred forty-nine".