85642711013771 has 16 divisors (see below), whose sum is σ = 88853529848544. Its totient is φ = 82504862329344.

The previous prime is 85642711013749. The next prime is 85642711013773. The reversal of 85642711013771 is 17731011724658.

It is not a de Polignac number, because 85642711013771 - 2⁴² = 81244664502667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85642711013773) 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, 66181616 + ... + 67463261.

It is an arithmetic number, because the mean of its divisors is an integer number (5553345615534).

Almost surely, 2^{85642711013771} is an apocalyptic number.

85642711013771 is a deficient number, since it is larger than the sum of its proper divisors (3210818834773).

85642711013771 is a wasteful number, since it uses less digits than its factorization.

85642711013771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133645150.

The product of its (nonzero) digits is 1975680, while the sum is 53.

The spelling of 85642711013771 in words is "eighty-five trillion, six hundred forty-two billion, seven hundred eleven million, thirteen thousand, seven hundred seventy-one".