85000000000001 has 4 divisors (see below), whose sum is σ = 87741935483904. Its totient is φ = 82258064516100.

The previous prime is 84999999999977. The next prime is 85000000000009. The reversal of 85000000000001 is 10000000000058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85000000000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85000000000009) 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, 1370967741905 + ... + 1370967741966.

It is an arithmetic number, because the mean of its divisors is an integer number (21935483870976).

Almost surely, 2^{85000000000001} is an apocalyptic number.

It is an amenable number.

85000000000001 is a deficient number, since it is larger than the sum of its proper divisors (2741935483903).

85000000000001 is a wasteful number, since it uses less digits than its factorization.

85000000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741935483902.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 85000000000001 its reverse (10000000000058), we get a palindrome (95000000000059).

The spelling of 85000000000001 in words is "eighty-five trillion, one", and thus it is an aban number and an uban number.