142217244489 has 16 divisors (see below), whose sum is σ = 202986259200. Its totient is φ = 88299018576.

The previous prime is 142217244479. The next prime is 142217244517. The reversal of 142217244489 is 984442712241.

It is not a de Polignac number, because 142217244489 - 2¹³ = 142217236297 is a prime.

It is a super-2 number, since 2×142217244489² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142217244479) 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, 21141039 + ... + 21147764.

It is an arithmetic number, because the mean of its divisors is an integer number (12686641200).

Almost surely, 2^142217244489 is an apocalyptic number.

142217244489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

142217244489 is a deficient number, since it is larger than the sum of its proper divisors (60769014711).

142217244489 is a wasteful number, since it uses less digits than its factorization.

142217244489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42288884.

The product of its digits is 1032192, while the sum is 48.

The spelling of 142217244489 in words is "one hundred forty-two billion, two hundred seventeen million, two hundred forty-four thousand, four hundred eighty-nine".