85430854277 has 4 divisors (see below), whose sum is σ = 85454117100. Its totient is φ = 85407591456.

The previous prime is 85430854261. The next prime is 85430854303. The reversal of 85430854277 is 77245803458.

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 15988590916 + 69442263361 = 126446^2 + 263519^2 .

It is a cyclic number.

It is not a de Polignac number, because 85430854277 - 2⁴ = 85430854261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85430854237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11625902 + ... + 11633247.

It is an arithmetic number, because the mean of its divisors is an integer number (21363529275).

Almost surely, 2^85430854277 is an apocalyptic number.

It is an amenable number.

85430854277 is a deficient number, since it is larger than the sum of its proper divisors (23262823).

85430854277 is a wasteful number, since it uses less digits than its factorization.

85430854277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23262822.

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 85430854277 in words is "eighty-five billion, four hundred thirty million, eight hundred fifty-four thousand, two hundred seventy-seven".