85717008541 has 4 divisors (see below), whose sum is σ = 90759185532. Its totient is φ = 80674831552.

The previous prime is 85717008497. The next prime is 85717008547. The reversal of 85717008541 is 14580071758.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56048668516 + 29668340025 = 236746^2 + 172245^2 .

It is a cyclic number.

It is not a de Polignac number, because 85717008541 - 2³³ = 77127073949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85717008491 and 85717008500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85717008547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2521088470 + ... + 2521088503.

It is an arithmetic number, because the mean of its divisors is an integer number (22689796383).

Almost surely, 2^85717008541 is an apocalyptic number.

It is an amenable number.

85717008541 is a deficient number, since it is larger than the sum of its proper divisors (5042176991).

85717008541 is a wasteful number, since it uses less digits than its factorization.

85717008541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042176990.

The product of its (nonzero) digits is 313600, while the sum is 46.

The spelling of 85717008541 in words is "eighty-five billion, seven hundred seventeen million, eight thousand, five hundred forty-one".