142288363638 has 16 divisors (see below), whose sum is σ = 316196363760. Its totient is φ = 47429454528.

The previous prime is 142288363621. The next prime is 142288363663. The reversal of 142288363638 is 836363882241.

142288363638 is a `hidden beast` number, since 142 + 2 + 88 + 363 + 63 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 2634969697 = 142288363638 / (1 + 4 + 2 + 2 + 8 + 8 + 3 + 6 + 3 + 6 + 3 + 8).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317484795 + ... + 1317484902.

It is an arithmetic number, because the mean of its divisors is an integer number (19762272735).

Almost surely, 2^142288363638 is an apocalyptic number.

142288363638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142288363638 is an abundant number, since it is smaller than the sum of its proper divisors (173908000122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142288363638 is a wasteful number, since it uses less digits than its factorization.

142288363638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634969708 (or 2634969702 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The spelling of 142288363638 in words is "one hundred forty-two billion, two hundred eighty-eight million, three hundred sixty-three thousand, six hundred thirty-eight".