101857385485 has 16 divisors (see below), whose sum is σ = 122551464240. Its totient is φ = 81271121920.

The previous prime is 101857385449. The next prime is 101857385489. The reversal of 101857385485 is 584583758101.

It can be written as a sum of positive squares in 8 ways, for example, as 61800965604 + 40056419881 = 248598^2 + 200141^2 .

It is not a de Polignac number, because 101857385485 - 2¹⁵ = 101857352717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101857385489) 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, 3016395 + ... + 3049975.

It is an arithmetic number, because the mean of its divisors is an integer number (7659466515).

Almost surely, 2^101857385485 is an apocalyptic number.

It is an amenable number.

101857385485 is a deficient number, since it is larger than the sum of its proper divisors (20694078755).

101857385485 is an equidigital number, since it uses as much as digits as its factorization.

101857385485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35168.

The product of its (nonzero) digits is 5376000, while the sum is 55.

The spelling of 101857385485 in words is "one hundred one billion, eight hundred fifty-seven million, three hundred eighty-five thousand, four hundred eighty-five".