85257628611101 has 4 divisors (see below), whose sum is σ = 88197546839100. Its totient is φ = 82317710383104.

The previous prime is 85257628611097. The next prime is 85257628611139. The reversal of 85257628611101 is 10111682675258.

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 26922036936025 + 58335591675076 = 5188645^2 + 7637774^2 .

It is a cyclic number.

It is not a de Polignac number, because 85257628611101 - 2² = 85257628611097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85257628611151) 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, 1469959113956 + ... + 1469959114013.

It is an arithmetic number, because the mean of its divisors is an integer number (22049386709775).

Almost surely, 2^{85257628611101} is an apocalyptic number.

It is an amenable number.

85257628611101 is a deficient number, since it is larger than the sum of its proper divisors (2939918227999).

85257628611101 is a wasteful number, since it uses less digits than its factorization.

85257628611101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939918227998.

The product of its (nonzero) digits is 1612800, while the sum is 53.

The spelling of 85257628611101 in words is "eighty-five trillion, two hundred fifty-seven billion, six hundred twenty-eight million, six hundred eleven thousand, one hundred one".