961134909373 has 4 divisors (see below), whose sum is σ = 961214347548. Its totient is φ = 961055471200.

The previous prime is 961134909311. The next prime is 961134909379. The reversal of 961134909373 is 373909431169.

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 568724123044 + 392410786329 = 754138^2 + 626427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961134909373 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 (961134909379) 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, 39700936 + ... + 39725137.

It is an arithmetic number, because the mean of its divisors is an integer number (240303586887).

Almost surely, 2^961134909373 is an apocalyptic number.

It is an amenable number.

961134909373 is a deficient number, since it is larger than the sum of its proper divisors (79438175).

961134909373 is a wasteful number, since it uses less digits than its factorization.

961134909373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79438174.

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 961134909373 in words is "nine hundred sixty-one billion, one hundred thirty-four million, nine hundred nine thousand, three hundred seventy-three".