85761824131 has 2 divisors, whose sum is σ = 85761824132. Its totient is φ = 85761824130.

The previous prime is 85761824129. The next prime is 85761824153. The reversal of 85761824131 is 13142816758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85761824131 - 2¹ = 85761824129 is a prime.

It is a super-2 number, since 2×85761824131² (a number of 23 digits) contains 22 as substring.

Together with 85761824129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (85761824531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42880912065 + 42880912066.

It is an arithmetic number, because the mean of its divisors is an integer number (42880912066).

Almost surely, 2^85761824131 is an apocalyptic number.

85761824131 is a deficient number, since it is larger than the sum of its proper divisors (1).

85761824131 is an equidigital number, since it uses as much as digits as its factorization.

85761824131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 46.

The spelling of 85761824131 in words is "eighty-five billion, seven hundred sixty-one million, eight hundred twenty-four thousand, one hundred thirty-one".