961195942672 has 30 divisors (see below), whose sum is σ = 2166368918478. Its totient is φ = 411941117952.

The previous prime is 961195942631. The next prime is 961195942673. The reversal of 961195942672 is 276249591169.

It can be written as a sum of positive squares in only one way, i.e., 930345127936 + 30850814736 = 964544^2 + 175644^2 .

It is a super-2 number, since 2×961195942672² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 961195942672.

It is not an unprimeable number, because it can be changed into a prime (961195942673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613006833 + ... + 613008400.

Almost surely, 2^961195942672 is an apocalyptic number.

It is an amenable number.

961195942672 is an abundant number, since it is smaller than the sum of its proper divisors (1205172975806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961195942672 is a wasteful number, since it uses less digits than its factorization.

961195942672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226015255 (or 1226015242 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 61.

The spelling of 961195942672 in words is "nine hundred sixty-one billion, one hundred ninety-five million, nine hundred forty-two thousand, six hundred seventy-two".