857603099503 has 16 divisors (see below), whose sum is σ = 934626135040. Its totient is φ = 783924220800.

The previous prime is 857603099489. The next prime is 857603099539. The reversal of 857603099503 is 305990306758.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 857603099503 - 2²⁵ = 857569545071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857603096503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1961793 + ... + 2358778.

It is an arithmetic number, because the mean of its divisors is an integer number (58414133440).

Almost surely, 2^857603099503 is an apocalyptic number.

857603099503 is a deficient number, since it is larger than the sum of its proper divisors (77023035537).

857603099503 is a wasteful number, since it uses less digits than its factorization.

857603099503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320958.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 857603099503 in words is "eight hundred fifty-seven billion, six hundred three million, ninety-nine thousand, five hundred three".