142261647842 has 8 divisors (see below), whose sum is σ = 225944970156. Its totient is φ = 66946657792.

The previous prime is 142261647839. The next prime is 142261647863. The reversal of 142261647842 is 248746162241.

It can be written as a sum of positive squares in 2 ways, for example, as 140760782761 + 1500865081 = 375181^2 + 38741^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2092083023 + ... + 2092083090.

Almost surely, 2^142261647842 is an apocalyptic number.

142261647842 is a deficient number, since it is larger than the sum of its proper divisors (83683322314).

142261647842 is a wasteful number, since it uses less digits than its factorization.

142261647842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184166132.

The product of its digits is 1032192, while the sum is 47.

The spelling of 142261647842 in words is "one hundred forty-two billion, two hundred sixty-one million, six hundred forty-seven thousand, eight hundred forty-two".