85811281553427 has 4 divisors (see below), whose sum is σ = 114415042071240. Its totient is φ = 57207521035616.

The previous prime is 85811281553377. The next prime is 85811281553467. The reversal of 85811281553427 is 72435518211858.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85811281553427 - 2¹⁴ = 85811281537043 is a prime.

It is a super-3 number, since 3×85811281553427³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (85811281553467) 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, 14301880258902 + ... + 14301880258907.

It is an arithmetic number, because the mean of its divisors is an integer number (28603760517810).

Almost surely, 2^{85811281553427} is an apocalyptic number.

85811281553427 is a deficient number, since it is larger than the sum of its proper divisors (28603760517813).

85811281553427 is a wasteful number, since it uses less digits than its factorization.

85811281553427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28603760517812.

The product of its digits is 21504000, while the sum is 60.

The spelling of 85811281553427 in words is "eighty-five trillion, eight hundred eleven billion, two hundred eighty-one million, five hundred fifty-three thousand, four hundred twenty-seven".