8255891491327 has 4 divisors (see below), whose sum is σ = 8277114863160. Its totient is φ = 8234668119496.

The previous prime is 8255891491321. The next prime is 8255891491339. The reversal of 8255891491327 is 7231941985528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8255891491327 - 2¹⁹ = 8255890967039 is a prime.

It is a super-2 number, since 2×8255891491327² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8255891491321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10611685333 + ... + 10611686110.

It is an arithmetic number, because the mean of its divisors is an integer number (2069278715790).

Almost surely, 2^{8255891491327} is an apocalyptic number.

8255891491327 is a deficient number, since it is larger than the sum of its proper divisors (21223371833).

8255891491327 is a wasteful number, since it uses less digits than its factorization.

8255891491327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21223371832.

The product of its digits is 43545600, while the sum is 64.

The spelling of 8255891491327 in words is "eight trillion, two hundred fifty-five billion, eight hundred ninety-one million, four hundred ninety-one thousand, three hundred twenty-seven".