961121429764 has 24 divisors (see below), whose sum is σ = 1797240032280. Its totient is φ = 448142962176.

The previous prime is 961121429761. The next prime is 961121429777. The reversal of 961121429764 is 467924121169.

It is a happy number.

961121429764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 198730507264 + 762390922500 = 445792^2 + 873150^2 .

It is a super-3 number, since 3×961121429764³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (961121429761) 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, 64828087 + ... + 64842910.

It is an arithmetic number, because the mean of its divisors is an integer number (74885001345).

Almost surely, 2^961121429764 is an apocalyptic number.

It is an amenable number.

961121429764 is a deficient number, since it is larger than the sum of its proper divisors (836118602516).

961121429764 is a wasteful number, since it uses less digits than its factorization.

961121429764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129671127 (or 129671125 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The spelling of 961121429764 in words is "nine hundred sixty-one billion, one hundred twenty-one million, four hundred twenty-nine thousand, seven hundred sixty-four".