96776365921 has 9 divisors (see below), whose sum is σ = 97675852729. Its totient is φ = 95885095936.

The previous prime is 96776365867. The next prime is 96776365927. The reversal of 96776365921 is 12956367769.

The square root of 96776365921 is 311089.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1739807521 + 95036558400 = 41711^2 + 308280^2 .

It is not a de Polignac number, because 96776365921 - 2³¹ = 94628882273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 96776365921.

It is not an unprimeable number, because it can be changed into a prime (96776365927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35151681 + ... + 35154433.

Almost surely, 2^96776365921 is an apocalyptic number.

96776365921 is the 311089-th square number.

96776365921 is the 155545-th centered octagonal number.

It is an amenable number.

96776365921 is a deficient number, since it is larger than the sum of its proper divisors (899486808).

96776365921 is an frugal number, since it uses more digits than its factorization.

96776365921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732 (or 2866 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 61.

The spelling of 96776365921 in words is "ninety-six billion, seven hundred seventy-six million, three hundred sixty-five thousand, nine hundred twenty-one".