16857849495 has 16 divisors (see below), whose sum is σ = 27902648160. Its totient is φ = 8680823424.

The previous prime is 16857849493. The next prime is 16857849499. The reversal of 16857849495 is 59494875861.

It is not a de Polignac number, because 16857849495 - 2¹ = 16857849493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16857849493) 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, 19376404 + ... + 19377273.

It is an arithmetic number, because the mean of its divisors is an integer number (1743915510).

Almost surely, 2^16857849495 is an apocalyptic number.

16857849495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16857849495 is a deficient number, since it is larger than the sum of its proper divisors (11044798665).

16857849495 is a wasteful number, since it uses less digits than its factorization.

16857849495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38753714.

The product of its digits is 87091200, while the sum is 66.

The spelling of 16857849495 in words is "sixteen billion, eight hundred fifty-seven million, eight hundred forty-nine thousand, four hundred ninety-five".