9725776512966 has 12 divisors (see below), whose sum is σ = 21072515778132. Its totient is φ = 3241925504316.

The previous prime is 9725776512953. The next prime is 9725776513001. The reversal of 9725776512966 is 6692156775279.

9725776512966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9725776512966² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9725776512894 and 9725776512903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270160458676 + ... + 270160458711.

It is an arithmetic number, because the mean of its divisors is an integer number (1756042981511).

Almost surely, 2^{9725776512966} is an apocalyptic number.

9725776512966 is an abundant number, since it is smaller than the sum of its proper divisors (11346739265166).

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

9725776512966 is a wasteful number, since it uses less digits than its factorization.

9725776512966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540320917395 (or 540320917392 counting only the distinct ones).

The product of its digits is 600112800, while the sum is 72.

The spelling of 9725776512966 in words is "nine trillion, seven hundred twenty-five billion, seven hundred seventy-six million, five hundred twelve thousand, nine hundred sixty-six".