142439563860 has 96 divisors (see below), whose sum is σ = 435197145600. Its totient is φ = 34522151040.

The previous prime is 142439563789. The next prime is 142439563867. The reversal of 142439563860 is 68365934241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142439563867) 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, 2838871 + ... + 2888609.

It is an arithmetic number, because the mean of its divisors is an integer number (4533303600).

Almost surely, 2^142439563860 is an apocalyptic number.

142439563860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142439563860 is an abundant number, since it is smaller than the sum of its proper divisors (292757581740).

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

142439563860 is a wasteful number, since it uses less digits than its factorization.

142439563860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54101 (or 54099 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 142439563860 in words is "one hundred forty-two billion, four hundred thirty-nine million, five hundred sixty-three thousand, eight hundred sixty".