895728165551 has 4 divisors (see below), whose sum is σ = 895812942672. Its totient is φ = 895643388432.

The previous prime is 895728165529. The next prime is 895728165593. The reversal of 895728165551 is 155561827598.

895728165551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155561827598 = 2 ⋅77780913799.

It is a cyclic number.

It is not a de Polignac number, because 895728165551 - 2¹⁴ = 895728149167 is a prime.

It is a super-2 number, since 2×895728165551² (a number of 25 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 (895728135551) 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, 42372710 + ... + 42393843.

It is an arithmetic number, because the mean of its divisors is an integer number (223953235668).

Almost surely, 2^895728165551 is an apocalyptic number.

895728165551 is a deficient number, since it is larger than the sum of its proper divisors (84777121).

895728165551 is a wasteful number, since it uses less digits than its factorization.

895728165551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84777120.

The product of its digits is 30240000, while the sum is 62.

The spelling of 895728165551 in words is "eight hundred ninety-five billion, seven hundred twenty-eight million, one hundred sixty-five thousand, five hundred fifty-one".