85105136276137 has 4 divisors (see below), whose sum is σ = 86710893564420. Its totient is φ = 83499378987856.

The previous prime is 85105136276131. The next prime is 85105136276141. The reversal of 85105136276137 is 73167263150158.

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 56238360602176 + 28866775673961 = 7499224^2 + 5372781^2 .

It is a cyclic number.

It is not a de Polignac number, because 85105136276137 - 2⁷ = 85105136276009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85105136276131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802878644062 + ... + 802878644167.

It is an arithmetic number, because the mean of its divisors is an integer number (21677723391105).

Almost surely, 2^{85105136276137} is an apocalyptic number.

It is an amenable number.

85105136276137 is a deficient number, since it is larger than the sum of its proper divisors (1605757288283).

85105136276137 is a wasteful number, since it uses less digits than its factorization.

85105136276137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605757288282.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 85105136276137 in words is "eighty-five trillion, one hundred five billion, one hundred thirty-six million, two hundred seventy-six thousand, one hundred thirty-seven".