9791276384257 has 4 divisors (see below), whose sum is σ = 9791326262320. Its totient is φ = 9791226506196.

The previous prime is 9791276384251. The next prime is 9791276384473. The reversal of 9791276384257 is 7524836721979.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9791276384257 - 2²⁷ = 9791142166529 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24643407 + ... + 25037572.

It is an arithmetic number, because the mean of its divisors is an integer number (2447831565580).

Almost surely, 2^{9791276384257} is an apocalyptic number.

It is an amenable number.

9791276384257 is a deficient number, since it is larger than the sum of its proper divisors (49878063).

9791276384257 is a wasteful number, since it uses less digits than its factorization.

9791276384257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49878062.

The product of its digits is 320060160, while the sum is 70.

The spelling of 9791276384257 in words is "nine trillion, seven hundred ninety-one billion, two hundred seventy-six million, three hundred eighty-four thousand, two hundred fifty-seven".