142778310012 has 48 divisors (see below), whose sum is σ = 398640299680. Its totient is φ = 43931787264.

The previous prime is 142778309983. The next prime is 142778310019. The reversal of 142778310012 is 210013877241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142778310019) 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 15 ways as a sum of consecutive naturals, for example, 50845573 + ... + 50848380.

Almost surely, 2^142778310012 is an apocalyptic number.

142778310012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142778310012 is an abundant number, since it is smaller than the sum of its proper divisors (255861989668).

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

142778310012 is a wasteful number, since it uses less digits than its factorization.

142778310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101693979 (or 101693971 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 142778310012 in words is "one hundred forty-two billion, seven hundred seventy-eight million, three hundred ten thousand, twelve".