85651548653 has 4 divisors (see below), whose sum is σ = 93438053088. Its totient is φ = 77865044220.

The previous prime is 85651548623. The next prime is 85651548707. The reversal of 85651548653 is 35684515658.

It is a happy number.

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 85651548653 - 2⁸ = 85651548397 is a prime.

It is a super-2 number, since 2×85651548653² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85651548623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3893252201 + ... + 3893252222.

It is an arithmetic number, because the mean of its divisors is an integer number (23359513272).

Almost surely, 2^85651548653 is an apocalyptic number.

It is an amenable number.

85651548653 is a deficient number, since it is larger than the sum of its proper divisors (7786504435).

85651548653 is a wasteful number, since it uses less digits than its factorization.

85651548653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786504434.

The product of its digits is 17280000, while the sum is 56.

The spelling of 85651548653 in words is "eighty-five billion, six hundred fifty-one million, five hundred forty-eight thousand, six hundred fifty-three".