142044780677 has 2 divisors, whose sum is σ = 142044780678. Its totient is φ = 142044780676.

The previous prime is 142044780659. The next prime is 142044780733. The reversal of 142044780677 is 776087440241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114676372321 + 27368408356 = 338639^2 + 165434^2 .

It is a cyclic number.

It is not a de Polignac number, because 142044780677 - 2³² = 137749813381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142044785677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71022390338 + 71022390339.

It is an arithmetic number, because the mean of its divisors is an integer number (71022390339).

Almost surely, 2^142044780677 is an apocalyptic number.

It is an amenable number.

142044780677 is a deficient number, since it is larger than the sum of its proper divisors (1).

142044780677 is an equidigital number, since it uses as much as digits as its factorization.

142044780677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2107392, while the sum is 50.

The spelling of 142044780677 in words is "one hundred forty-two billion, forty-four million, seven hundred eighty thousand, six hundred seventy-seven".