142402751677 has 4 divisors (see below), whose sum is σ = 147313191420. Its totient is φ = 137492311936.

The previous prime is 142402751641. The next prime is 142402751693. The reversal of 142402751677 is 776157204241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41875073956 + 100527677721 = 204634^2 + 317061^2 .

It is a cyclic number.

It is not a de Polignac number, because 142402751677 - 2¹⁹ = 142402227389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142402751627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2455219828 + ... + 2455219885.

It is an arithmetic number, because the mean of its divisors is an integer number (36828297855).

Almost surely, 2^142402751677 is an apocalyptic number.

It is an amenable number.

142402751677 is a deficient number, since it is larger than the sum of its proper divisors (4910439743).

142402751677 is an equidigital number, since it uses as much as digits as its factorization.

142402751677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910439742.

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 142402751677 in words is "one hundred forty-two billion, four hundred two million, seven hundred fifty-one thousand, six hundred seventy-seven".