961124385823 has 4 divisors (see below), whose sum is σ = 1098427869520. Its totient is φ = 823820902128.

The previous prime is 961124385811. The next prime is 961124385839. The reversal of 961124385823 is 328583421169.

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

It is not a de Polignac number, because 961124385823 - 2²⁹ = 960587514911 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 (961124385803) 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, 68651741838 + ... + 68651741851.

It is an arithmetic number, because the mean of its divisors is an integer number (274606967380).

Almost surely, 2^961124385823 is an apocalyptic number.

961124385823 is a deficient number, since it is larger than the sum of its proper divisors (137303483697).

961124385823 is a wasteful number, since it uses less digits than its factorization.

961124385823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137303483696.

The product of its digits is 2488320, while the sum is 52.

The spelling of 961124385823 in words is "nine hundred sixty-one billion, one hundred twenty-four million, three hundred eighty-five thousand, eight hundred twenty-three".