85623660469 has 8 divisors (see below), whose sum is σ = 86016654080. Its totient is φ = 85230747936.

The previous prime is 85623660443. The next prime is 85623660503. The reversal of 85623660469 is 96406632658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85623660469 - 2¹⁵ = 85623627701 is a prime.

It is a super-2 number, since 2×85623660469² (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 (85623660169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3427777 + ... + 3452665.

It is an arithmetic number, because the mean of its divisors is an integer number (10752081760).

Almost surely, 2^85623660469 is an apocalyptic number.

It is an amenable number.

85623660469 is a deficient number, since it is larger than the sum of its proper divisors (392993611).

85623660469 is a wasteful number, since it uses less digits than its factorization.

85623660469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40539.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 85623660469 in words is "eighty-five billion, six hundred twenty-three million, six hundred sixty thousand, four hundred sixty-nine".