285717457147 has 16 divisors (see below), whose sum is σ = 295845548544. Its totient is φ = 275755968000.

The previous prime is 285717457133. The next prime is 285717457183. The reversal of 285717457147 is 741754717582.

It is a cyclic number.

It is not a de Polignac number, because 285717457147 - 2²³ = 285709068539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285717457091 and 285717457100.

It is not an unprimeable number, because it can be changed into a prime (285717457187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1316623 + ... + 1518199.

It is an arithmetic number, because the mean of its divisors is an integer number (18490346784).

Almost surely, 2^285717457147 is an apocalyptic number.

285717457147 is a deficient number, since it is larger than the sum of its proper divisors (10128091397).

285717457147 is a wasteful number, since it uses less digits than its factorization.

285717457147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201990.

The product of its digits is 15366400, while the sum is 58.

The spelling of 285717457147 in words is "two hundred eighty-five billion, seven hundred seventeen million, four hundred fifty-seven thousand, one hundred forty-seven".