146585487871 has 4 divisors (see below), whose sum is σ = 146734609392. Its totient is φ = 146436366352.

The previous prime is 146585487859. The next prime is 146585487877. The reversal of 146585487871 is 178784585641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146585487871 - 2²⁷ = 146451270143 is a prime.

It is a super-2 number, since 2×146585487871² (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 (146585487877) 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, 74559286 + ... + 74561251.

It is an arithmetic number, because the mean of its divisors is an integer number (36683652348).

Almost surely, 2^146585487871 is an apocalyptic number.

146585487871 is a deficient number, since it is larger than the sum of its proper divisors (149121521).

146585487871 is an equidigital number, since it uses as much as digits as its factorization.

146585487871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149121520.

The product of its digits is 60211200, while the sum is 64.

The spelling of 146585487871 in words is "one hundred forty-six billion, five hundred eighty-five million, four hundred eighty-seven thousand, eight hundred seventy-one".