142741984840 has 128 divisors (see below), whose sum is σ = 396551554560. Its totient is φ = 45030795264.

The previous prime is 142741984811. The next prime is 142741984843. The reversal of 142741984840 is 48489147241.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (142741984843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1076677 + ... + 1201963.

It is an arithmetic number, because the mean of its divisors is an integer number (3098059020).

Almost surely, 2^142741984840 is an apocalyptic number.

142741984840 is a gapful number since it is divisible by the number (10) 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 142741984840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198275777280).

142741984840 is an abundant number, since it is smaller than the sum of its proper divisors (253809569720).

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

142741984840 is a wasteful number, since it uses less digits than its factorization.

142741984840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125631 (or 125627 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 142741984840 in words is "one hundred forty-two billion, seven hundred forty-one million, nine hundred eighty-four thousand, eight hundred forty".