9791276384256 has 272 divisors, whose sum is σ = 27848842015104. Its totient is φ = 3049208676352.

The previous prime is 9791276384251. The next prime is 9791276384473. The reversal of 9791276384256 is 6524836721979.

It is a tau number, because it is divible by the number of its divisors (272).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9791276384251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457889341 + ... + 457910723.

Almost surely, 2^{9791276384256} is an apocalyptic number.

9791276384256 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9791276384256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13924421007552).

9791276384256 is an abundant number, since it is smaller than the sum of its proper divisors (18057565630848).

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

9791276384256 is a wasteful number, since it uses less digits than its factorization.

9791276384256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21572 (or 21542 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 69.

The spelling of 9791276384256 in words is "nine trillion, seven hundred ninety-one billion, two hundred seventy-six million, three hundred eighty-four thousand, two hundred fifty-six".