142001268650 has 72 divisors (see below), whose sum is σ = 270616842732. Its totient is φ = 55422432000.

The previous prime is 142001268649. The next prime is 142001268653. The reversal of 142001268650 is 56862100241.

It can be written as a sum of positive squares in 6 ways, for example, as 55663436761 + 86337831889 = 235931^2 + 293833^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142001268650.

It is not an unprimeable number, because it can be changed into a prime (142001268653) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52339694 + ... + 52342406.

Almost surely, 2^142001268650 is an apocalyptic number.

142001268650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142001268650 is a deficient number, since it is larger than the sum of its proper divisors (128615574082).

142001268650 is a wasteful number, since it uses less digits than its factorization.

142001268650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 142001268650 its reverse (56862100241), we get a palindrome (198863368891).

The spelling of 142001268650 in words is "one hundred forty-two billion, one million, two hundred sixty-eight thousand, six hundred fifty".