142778310049 has 8 divisors (see below), whose sum is σ = 144574702272. Its totient is φ = 140983731600.

The previous prime is 142778310019. The next prime is 142778310061. The reversal of 142778310049 is 940013877241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142778310049 - 2²⁵ = 142744755617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142778309990 and 142778310008.

It is not an unprimeable number, because it can be changed into a prime (142778310019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294669 + ... + 610234.

It is an arithmetic number, because the mean of its divisors is an integer number (18071837784).

Almost surely, 2^142778310049 is an apocalyptic number.

It is an amenable number.

142778310049 is a deficient number, since it is larger than the sum of its proper divisors (1796392223).

142778310049 is an equidigital number, since it uses as much as digits as its factorization.

142778310049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906887.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 142778310049 in words is "one hundred forty-two billion, seven hundred seventy-eight million, three hundred ten thousand, forty-nine".