142639817712 has 120 divisors (see below), whose sum is σ = 429124177152. Its totient is φ = 40708886400.

The previous prime is 142639817693. The next prime is 142639817731. The reversal of 142639817712 is 217718936241.

It is an interprime number because it is at equal distance from previous prime (142639817693) and next prime (142639817731).

It is a super-2 number, since 2×142639817712² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2109387 + ... + 2175957.

Almost surely, 2^142639817712 is an apocalyptic number.

142639817712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142639817712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214562088576).

142639817712 is an abundant number, since it is smaller than the sum of its proper divisors (286484359440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142639817712 is a wasteful number, since it uses less digits than its factorization.

142639817712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67507 (or 67494 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The spelling of 142639817712 in words is "one hundred forty-two billion, six hundred thirty-nine million, eight hundred seventeen thousand, seven hundred twelve".