142420707780 has 192 divisors, whose sum is σ = 443673151488. Its totient is φ = 33898475520.

The previous prime is 142420707739. The next prime is 142420707787. The reversal of 142420707780 is 87707024241.

It is not an unprimeable number, because it can be changed into a prime (142420707787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54089344 + ... + 54091976.

It is an arithmetic number, because the mean of its divisors is an integer number (2310797664).

Almost surely, 2^142420707780 is an apocalyptic number.

142420707780 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 142420707780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221836575744).

142420707780 is an abundant number, since it is smaller than the sum of its proper divisors (301252443708).

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

142420707780 is a wasteful number, since it uses less digits than its factorization.

142420707780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The spelling of 142420707780 in words is "one hundred forty-two billion, four hundred twenty million, seven hundred seven thousand, seven hundred eighty".