85473547399 has 2 divisors, whose sum is σ = 85473547400. Its totient is φ = 85473547398.

The previous prime is 85473547363. The next prime is 85473547409. The reversal of 85473547399 is 99374537458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85473547399 is a prime.

It is a super-3 number, since 3×85473547399³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85473547399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85473547099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42736773699 + 42736773700.

It is an arithmetic number, because the mean of its divisors is an integer number (42736773700).

Almost surely, 2^85473547399 is an apocalyptic number.

85473547399 is a deficient number, since it is larger than the sum of its proper divisors (1).

85473547399 is an equidigital number, since it uses as much as digits as its factorization.

85473547399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 114307200, while the sum is 64.

The spelling of 85473547399 in words is "eighty-five billion, four hundred seventy-three million, five hundred forty-seven thousand, three hundred ninety-nine".