85604347511 has 2 divisors, whose sum is σ = 85604347512. Its totient is φ = 85604347510.

The previous prime is 85604347483. The next prime is 85604347529. The reversal of 85604347511 is 11574340658.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85604347511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85604347541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42802173755 + 42802173756.

It is an arithmetic number, because the mean of its divisors is an integer number (42802173756).

Almost surely, 2^85604347511 is an apocalyptic number.

85604347511 is a deficient number, since it is larger than the sum of its proper divisors (1).

85604347511 is an equidigital number, since it uses as much as digits as its factorization.

85604347511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 85604347511 in words is "eighty-five billion, six hundred four million, three hundred forty-seven thousand, five hundred eleven".