142898375857 has 4 divisors (see below), whose sum is σ = 144620043120. Its totient is φ = 141176708596.

The previous prime is 142898375843. The next prime is 142898375897. The reversal of 142898375857 is 758573898241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 758573898241 = 29 ⋅26157720629.

It is a cyclic number.

It is not a de Polignac number, because 142898375857 - 2⁷ = 142898375729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142898375792 and 142898375801.

It is not an unprimeable number, because it can be changed into a prime (142898375827) 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, 860833507 + ... + 860833672.

It is an arithmetic number, because the mean of its divisors is an integer number (36155010780).

Almost surely, 2^142898375857 is an apocalyptic number.

It is an amenable number.

142898375857 is a deficient number, since it is larger than the sum of its proper divisors (1721667263).

142898375857 is an equidigital number, since it uses as much as digits as its factorization.

142898375857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721667262.

The product of its digits is 135475200, while the sum is 67.

The spelling of 142898375857 in words is "one hundred forty-two billion, eight hundred ninety-eight million, three hundred seventy-five thousand, eight hundred fifty-seven".