142878189980 has 48 divisors (see below), whose sum is σ = 301246404480. Its totient is φ = 56922451968.

The previous prime is 142878189901. The next prime is 142878190051. The reversal of 142878189980 is 89981878241.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25885661 + ... + 25891179.

It is an arithmetic number, because the mean of its divisors is an integer number (6275966760).

Almost surely, 2^142878189980 is an apocalyptic number.

142878189980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142878189980 is an abundant number, since it is smaller than the sum of its proper divisors (158368214500).

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

142878189980 is a wasteful number, since it uses less digits than its factorization.

142878189980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10478 (or 10476 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 65.

The spelling of 142878189980 in words is "one hundred forty-two billion, eight hundred seventy-eight million, one hundred eighty-nine thousand, nine hundred eighty".