857603099505 has 32 divisors (see below), whose sum is σ = 1394758729728. Its totient is φ = 449858131200.

The previous prime is 857603099489. The next prime is 857603099539. The reversal of 857603099505 is 505990306758.

857603099505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 857603099505 - 2⁴ = 857603099489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18383760 + ... + 18430350.

It is an arithmetic number, because the mean of its divisors is an integer number (43586210304).

Almost surely, 2^857603099505 is an apocalyptic number.

It is an amenable number.

857603099505 is a deficient number, since it is larger than the sum of its proper divisors (537155630223).

857603099505 is a wasteful number, since it uses less digits than its factorization.

857603099505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66777.

The product of its (nonzero) digits is 10206000, while the sum is 57.

The spelling of 857603099505 in words is "eight hundred fifty-seven billion, six hundred three million, ninety-nine thousand, five hundred five".