85954344081 has 16 divisors (see below), whose sum is σ = 118175029056. Its totient is φ = 55544330816.

The previous prime is 85954344059. The next prime is 85954344101. The reversal of 85954344081 is 18044345958.

It is a cyclic number.

It is not a de Polignac number, because 85954344081 - 2¹³ = 85954335889 is a prime.

It is a super-2 number, since 2×85954344081² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85954324081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3243390 + ... + 3269783.

It is an arithmetic number, because the mean of its divisors is an integer number (7385939316).

Almost surely, 2^85954344081 is an apocalyptic number.

It is an amenable number.

85954344081 is a deficient number, since it is larger than the sum of its proper divisors (32220684975).

85954344081 is a wasteful number, since it uses less digits than its factorization.

85954344081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513312.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 85954344081 in words is "eighty-five billion, nine hundred fifty-four million, three hundred forty-four thousand, eighty-one".