85871881443513 has 8 divisors (see below), whose sum is σ = 124904554826976. Its totient is φ = 52043564511200.

The previous prime is 85871881443437. The next prime is 85871881443547. The reversal of 85871881443513 is 31534418817858.

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

It is a cyclic number.

It is not a de Polignac number, because 85871881443513 - 2⁴² = 81473834932409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85871881445513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301089112748 + ... + 1301089112813.

It is an arithmetic number, because the mean of its divisors is an integer number (15613069353372).

Almost surely, 2^{85871881443513} is an apocalyptic number.

It is an amenable number.

85871881443513 is a deficient number, since it is larger than the sum of its proper divisors (39032673383463).

85871881443513 is a wasteful number, since it uses less digits than its factorization.

85871881443513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602178225575.

The product of its digits is 103219200, while the sum is 66.

The spelling of 85871881443513 in words is "eighty-five trillion, eight hundred seventy-one billion, eight hundred eighty-one million, four hundred forty-three thousand, five hundred thirteen".