85287481453 has 4 divisors (see below), whose sum is σ = 85297499068. Its totient is φ = 85277463840.

The previous prime is 85287481427. The next prime is 85287481463. The reversal of 85287481453 is 35418478258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35418478258 = 2 ⋅17709239129.

It can be written as a sum of positive squares in 2 ways, for example, as 15005760004 + 70281721449 = 122498^2 + 265107^2 .

It is a cyclic number.

It is not a de Polignac number, because 85287481453 - 2⁵ = 85287481421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85287481394 and 85287481403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85287481463) 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, 4996026 + ... + 5013067.

It is an arithmetic number, because the mean of its divisors is an integer number (21324374767).

Almost surely, 2^85287481453 is an apocalyptic number.

It is an amenable number.

85287481453 is a deficient number, since it is larger than the sum of its proper divisors (10017615).

85287481453 is a wasteful number, since it uses less digits than its factorization.

85287481453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017614.

The product of its digits is 8601600, while the sum is 55.

The spelling of 85287481453 in words is "eighty-five billion, two hundred eighty-seven million, four hundred eighty-one thousand, four hundred fifty-three".