142261647838 has 8 divisors (see below), whose sum is σ = 214037163000. Its totient is φ = 70915926840.

The previous prime is 142261647833. The next prime is 142261647839. The reversal of 142261647838 is 838746162241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142261647833) 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, 107447713 + ... + 107449036.

It is an arithmetic number, because the mean of its divisors is an integer number (26754645375).

Almost surely, 2^142261647838 is an apocalyptic number.

142261647838 is a deficient number, since it is larger than the sum of its proper divisors (71775515162).

142261647838 is a wasteful number, since it uses less digits than its factorization.

142261647838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214897082.

The product of its digits is 3096576, while the sum is 52.

The spelling of 142261647838 in words is "one hundred forty-two billion, two hundred sixty-one million, six hundred forty-seven thousand, eight hundred thirty-eight".