85495639741 has 2 divisors, whose sum is σ = 85495639742. Its totient is φ = 85495639740.

The previous prime is 85495639729. The next prime is 85495639771. The reversal of 85495639741 is 14793659458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49972814116 + 35522825625 = 223546^2 + 188475^2 .

It is a cyclic number.

It is not a de Polignac number, because 85495639741 - 2⁷ = 85495639613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85495639741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85495639711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42747819870 + 42747819871.

It is an arithmetic number, because the mean of its divisors is an integer number (42747819871).

Almost surely, 2^85495639741 is an apocalyptic number.

It is an amenable number.

85495639741 is a deficient number, since it is larger than the sum of its proper divisors (1).

85495639741 is an equidigital number, since it uses as much as digits as its factorization.

85495639741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 61.

The spelling of 85495639741 in words is "eighty-five billion, four hundred ninety-five million, six hundred thirty-nine thousand, seven hundred forty-one".