85444272951 has 16 divisors (see below), whose sum is σ = 121349539584. Its totient is φ = 53291057024.

The previous prime is 85444272919. The next prime is 85444272959. The reversal of 85444272951 is 15927244458.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85444272951 - 2⁵ = 85444272919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 85444272894 and 85444272903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85444272959) 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, 5007585 + ... + 5024618.

It is an arithmetic number, because the mean of its divisors is an integer number (7584346224).

Almost surely, 2^85444272951 is an apocalyptic number.

85444272951 is a deficient number, since it is larger than the sum of its proper divisors (35905266633).

85444272951 is a wasteful number, since it uses less digits than its factorization.

85444272951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10032390.

The product of its digits is 3225600, while the sum is 51.

The spelling of 85444272951 in words is "eighty-five billion, four hundred forty-four million, two hundred seventy-two thousand, nine hundred fifty-one".