10857998517 has 8 divisors (see below), whose sum is σ = 14477832096. Its totient is φ = 7238415312.

The previous prime is 10857998461. The next prime is 10857998519. The reversal of 10857998517 is 71589975801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10857998517 - 2⁶ = 10857998453 is a prime.

It is a super-2 number, since 2×10857998517² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10857998519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96018 + ... + 175884.

It is an arithmetic number, because the mean of its divisors is an integer number (1809729012).

Almost surely, 2^10857998517 is an apocalyptic number.

It is an amenable number.

10857998517 is a deficient number, since it is larger than the sum of its proper divisors (3619833579).

10857998517 is an equidigital number, since it uses as much as digits as its factorization.

10857998517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125187.

The product of its (nonzero) digits is 6350400, while the sum is 60.

The spelling of 10857998517 in words is "ten billion, eight hundred fifty-seven million, nine hundred ninety-eight thousand, five hundred seventeen".