142086487720 has 64 divisors (see below), whose sum is σ = 327541086720. Its totient is φ = 55447401984.

The previous prime is 142086487703. The next prime is 142086487721. The reversal of 142086487720 is 27784680241.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (142086487721) 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, 467709 + ... + 709171.

It is an arithmetic number, because the mean of its divisors is an integer number (5117829480).

Almost surely, 2^142086487720 is an apocalyptic number.

142086487720 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 142086487720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163770543360).

142086487720 is an abundant number, since it is smaller than the sum of its proper divisors (185454599000).

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

142086487720 is a wasteful number, since it uses less digits than its factorization.

142086487720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241834 (or 241830 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 49.

The spelling of 142086487720 in words is "one hundred forty-two billion, eighty-six million, four hundred eighty-seven thousand, seven hundred twenty".