857003805005 has 64 divisors (see below), whose sum is σ = 1088903520000. Its totient is φ = 646555392000.

The previous prime is 857003805001. The next prime is 857003805011. The reversal of 857003805005 is 500508300758.

It is not a de Polignac number, because 857003805005 - 2² = 857003805001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857003805001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1240236710 + ... + 1240237400.

It is an arithmetic number, because the mean of its divisors is an integer number (17014117500).

Almost surely, 2^857003805005 is an apocalyptic number.

It is an amenable number.

857003805005 is a deficient number, since it is larger than the sum of its proper divisors (231899714995).

857003805005 is a wasteful number, since it uses less digits than its factorization.

857003805005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 857003805005 in words is "eight hundred fifty-seven billion, three million, eight hundred five thousand, five".