85625545469 has 4 divisors (see below), whose sum is σ = 89348395296. Its totient is φ = 81902695644.

The previous prime is 85625545463. The next prime is 85625545507. The reversal of 85625545469 is 96454552658.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85625545469 - 2²⁴ = 85608768253 is a prime.

It is a super-2 number, since 2×85625545469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85625545463) 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, 1861424879 + ... + 1861424924.

It is an arithmetic number, because the mean of its divisors is an integer number (22337098824).

Almost surely, 2^85625545469 is an apocalyptic number.

It is an amenable number.

85625545469 is a deficient number, since it is larger than the sum of its proper divisors (3722849827).

85625545469 is a wasteful number, since it uses less digits than its factorization.

85625545469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722849826.

The product of its digits is 51840000, while the sum is 59.

The spelling of 85625545469 in words is "eighty-five billion, six hundred twenty-five million, five hundred forty-five thousand, four hundred sixty-nine".