809257893997383 has 12 divisors (see below), whose sum is σ = 1168977745503048. Its totient is φ = 539482335097680.

The previous prime is 809257893997373. The next prime is 809257893997439. The reversal of 809257893997383 is 383799398752908.

809257893997383 is a `hidden beast` number, since 8 + 0 + 9 + 2 + 5 + 78 + 9 + 399 + 73 + 83 = 666.

It is not a de Polignac number, because 809257893997383 - 2²⁰ = 809257892948807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 809257893997293 and 809257893997302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809257893997373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1910407060 + ... + 1910830617.

It is an arithmetic number, because the mean of its divisors is an integer number (97414812125254).

Almost surely, 2^{809257893997383} is an apocalyptic number.

809257893997383 is a deficient number, since it is larger than the sum of its proper divisors (359719851505665).

809257893997383 is a wasteful number, since it uses less digits than its factorization.

809257893997383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821261214 (or 3821261211 counting only the distinct ones).

The product of its (nonzero) digits is 44442639360, while the sum is 90.

The spelling of 809257893997383 in words is "eight hundred nine trillion, two hundred fifty-seven billion, eight hundred ninety-three million, nine hundred ninety-seven thousand, three hundred eighty-three".