10857109557 has 16 divisors (see below), whose sum is σ = 16896172032. Its totient is φ = 6072060720.

The previous prime is 10857109553. The next prime is 10857109573. The reversal of 10857109557 is 75590175801.

It is a happy number.

It is not a de Polignac number, because 10857109557 - 2² = 10857109553 is a prime.

10857109557 is a modest number, since divided by 109557 gives 10857 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10857109553) 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, 5499069 + ... + 5501042.

It is an arithmetic number, because the mean of its divisors is an integer number (1056010752).

Almost surely, 2^10857109557 is an apocalyptic number.

It is an amenable number.

10857109557 is a deficient number, since it is larger than the sum of its proper divisors (6039062475).

10857109557 is a wasteful number, since it uses less digits than its factorization.

10857109557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000168.

The product of its (nonzero) digits is 441000, while the sum is 48.

The spelling of 10857109557 in words is "ten billion, eight hundred fifty-seven million, one hundred nine thousand, five hundred fifty-seven".